Allison Williams posted this photo to her Instagram account, Feb. 8, 2017.
Ruby Rose Goes Magenta
Ruby Rose posted this photo her Instagram account, Dec. 16, 2016.
Uma Thurman Debuts a Shorter, Darker Do
Uma Thurman attends the Pirelli calendar 2017 by Peter Lindberg launch press conference at Hotel Salomon de Rothschild on Nov. 29, 2016, in Paris.
Marc Piasecki/Getty images
Check Out America Ferrara's New Do
America Ferrera arrives at the NBC and Vanity Fair Toast to the 2016-2017 TV season, Nov. 2, 2016, in Los Angeles.
Willy Sanjuan/Invision/AP Photo
Kristen Stewart Debuts a Cropped Blond Hairdo
Kristen Stewart attends the "Certain Women" premiere during the 54th New York Film Festival, at Alice Tully Hall at Lincoln Center, Oct. 3, 2016, in New York City.
Gilbert Carrasquillo/Getty Images
Bethenny Frankel Debuts a Blunt Bob
Bethenny Frankel is seen at an exclusive viewing of "Real Housewives of New York City" to launch the latest Skinnygirl Cocktails, Aug. 17, 2016, in New York.
Diane Bondareff/Invision/AP Photo
Which 'Game of Thrones' Star Went Platinum?
"Game Of Thrones" actress Sophie Turner shared this image to her Instagram account for her newly dyed platinum hair, Aug. 4, 2016.
Sophie Turner|Getty Images
Check Out Tori Spelling's New Bold Hair
Tori Spelling sports new pink hair as she celebrates Fourth of July weekend with her family in Malibu, Calif., July 3, 2016.
Sarah Hyland Goes Red
Sarah Hyland posted this photo of her new hairstyle to her Instagram account with the caption, "Finally saying goodbye to my Lisa Houseman hair and bringing in the rest of the summer vibes," June 17, 2016.
Emma Stone Shows Off Her New Platinum Do
Emma Stone is pictured with blond hair in New York, June 2, 2016.
Jenny McCarthy Debuts a New Look
Jenny McCarthy visits SiriusXM Studios on May 11, 2016 in New York City.
Slaven Vlasic/Getty Images
Kylie Jenner Goes Peach at Coachella
Kylie Jenner is pictured at an event with Sama Khadra and Haya Khadra in Palm Springs, Calif., April 15, 2016.
Taylor Swift Debuts a New Look for Coachella
Taylor Swift shared this image to her Instagram, debuting a new hair do, April 15, 2016.
Kesha Debuts a New Blue Hairdo
A blue haired Kesha was spotted at LAX in Los Angeles, March 19, 2016.
Khloe Kardashian Debuts a Punk-Inspired Haircut
Khloe Kardashian was spotted showing off her platinum curls, with one side of her head shaved, while out for lunch in Beverly Hills, March 17, 2016.
Gwen Stefani Debuts an Edgy New Look
Gwen Stefani seen at LAX airport in Los Angeles, March 16, 2016.
Joe Jonas Shows off a Red Hairdo
Joe Jonas is seen leaving the BBC Radio 1 Studios, March 9, 2016, in London, England.
Alex Huckle/GC Images
Sarah Michelle Gellar Tries Out a Dramatic New Look
Sarah Michelle Gellar is seen in a photo posted to her Instagram account, March, 5, 2016.
Zendaya Shows Off a Blond Pixie Cut
Zendaya is seen at 'Jimmy Kimmel Live' on Feb. 10, 2016 in Los Angeles.
Emma Stone Goes for a Darker Do
Emma Stone is spotted leaving a salon with a dark new hair look for the role of her new upcoming movie, Feb.5, 2016, in Los Angeles.
Allison Williams Has a Banging New Look
A photo of Allison Williams with bangs was posted to her Instagram account, Jan. 28, 2016.
Bethenny Frankel Tries a Bright New Look
Bethenny Frankel arrives at the Skinny Girl Candy Launch at Dylan's Candy Bar on Jan. 26, 2016 in New York City.
Dave Kotinsky/Getty Images
Alyssa Milano Shows Off a Pixie Cut
Alyssa Milano showed off a new pixie cut hairstyle in an image she shared on her Instagram, Dec. 19, 2015.
Hilary Duff Cuts Off Her Hair
Hilary Duff posted this selfie to Instagram on Dec. 19, 2015 with the caption, "Soooo it's pretty short. Thank you @cynthiavanis chopping."
Jennifer Aniston Goes Blonder for a New Role
Jennifer Aniston is seen in character wardrobe on the set of 'The Yellow Birds' in Atlanta, Dec. 12, 2015.
Lauren Cohan Reveals New Cut
Lauren Cohan attends Z100's Jingle Ball 2015 at Madison Square Garden, Dec. 11, 2015 in New York City.
Craig Barritt/Getty Images
You Won't Believe Ali Larter's Dramatic New Look
Actress Ali Larter is spotted with auburn hair at a grocery store in Los Angeles, Dec. 4, 2015.
MOVI Inc./Splash News
Alyson Hannigan Steps Out With a New Bob
Alyson Hannigan is seen in Los Angeles, Dec. 9, 2015.
Kylie Jenner Goes Green
Kylie Jenner is seen in West Hollywood, Calif., Nov. 30, 2015.
LA Photo Lab/Splash News
Gigi Hadid Sports New Do
Gigi Hadid arrives at the 2015 American Music Awards at Microsoft Theater, Nov. 22, 2015, in Los Angeles.
Steve Granitz/Getty Images
Jared Leto Dyes His Hair Bright Red
Jared Leto arrives to Museum of Modern Art on Nov. 4, 2015 in New York.
James Devaney/GC Images
Jared Leto seen in SoHo on Oct. 8, 2015 in New York City.
Robert Kamau/Getty Images
Ryan Reynolds arrives at the "Mississippi Grind" premiere during the 2015 Toronto International Film Festival held at Roy Thomson Hall on Sept. 16, 2015 in Toronto.
Michael Tran/Getty Images
Elisabeth Moss Shows Goes Superblond
Elisabeth Moss attends the premiere of "High-Rise" during the 2015 Toronto International Film Festival at the Elgin, Sept. 13, 2015 in Toronto.
Joe Scarnici/Getty Images
Molly Sims Shows Off a Choppy New Hairdo
Molly Sims appears in a photo posted to her Instagram account on Sept. 9, 2015 with the text, "LOVE IT #done."
Whoa! See Sienna Miller's New Red Hairdo
Sienna Miller attends Nine By Savannah Miller for Debenhams launch party at the Ham Yard Hotel, Sept. 8, 2015, in London.
Keith Hewitt/Getty Images
Dakota Johnson Hits Venice with a Chic Bob
Dakota Johnson attends day 3 of the 72nd Venice Film Festival, Sept. 4, 2015, in Venice.
Danny Martindale/GC Images/Getty Images
Justin Bieber Debuts a Hipster Haircut
Justin Bieber arrives at the 2015 MTV Video Music Awards at the Microsoft Theater on Aug. 30, 2015, in Los Angeles.
C Flanigan/Getty Images
Miranda Lambert Debuts a Superblond Hairdo
Miranda Lambert posted this photo to Instagram on Aug. 20, 2015 with the caption, "What doesn't kill you only makes you blonder."
Britney Spears Shows Off New Blue and Purple Hair
Singer Britney Spears poses in the press room at the Teen Choice Awards 2015 at Galen Center in Los Angeles, Calif., Aug. 16, 2015.
Jon Kopaloff/Getty Images
Gigi Hadid Reveals Blue-Dipped Hair
Model Gigi Hadid poses at David Jones Elizabeth Street, Aug. 7, 2015, in Sydney.
Don Arnold/Getty Images
Rumer Willis Tries Mom Demi Moore's Old Hairdo
Rumer Willis was seen in Hollywood on July 30, 2015.
See Giuliana Rancic's Short New Hairdo
Giuliana Rancic shared this photo on Instagram on July 29, 2015.
Jenny McCarthy Goes Hot Pink
Jenny McCarthy was seen in New York, July 14, 2015.
Kylie Jenner Shows Off a Shocking New Look
Kylie Jenner arrives on the red carpet with mint green hair at Bellami Beauty Bar, July 9, 2015, in West Hollywood, Calif.
Nicole Richie Shows Off a New Blond Hairdo
Nicole Richie attends VH1's "Candidly Nicole" Season 2 Premiere Event at House of Harlow at The Grove, July 7, 2015, in Los Angeles, Calif.
Jeff Vespa/ Getty Images
Kesha Shows Off Her Bright Green Hair
Ke$ha is seen as she arrives at LAX airport in Los Angeles on June 18, 2015.
London Entertainment/Splash News
Jada Pinkett Smith Shows Off a Choppy Hairdo
Actress Jada Pinkett Smith visits the SiriusXM Studios, June 3, 2015, in New York.
Astrid Stawiarz/Getty Images
Jennifer Lopez Shows Off a Choppy New Hairdo
Jennifer Lopez gets "Glitter-Bombed" by a clown as she catches a flight out of Los Angeles, May 27, 2015.
Kesha Takes the Stage With Wild Green Hair
Kesha posted this photo to Instagram on May 23, 2015.
Bethenny Frankel Debuts a New, Shorter Hairdo
Bethenny Frankel debuts her new look at a Skinnygirl Cocktails viewing party with fans, Tuesday, May 19, 2015 in New York.
Diane Bondareff/AP Images
Madonna Dyes Her Hair Pink!
Madonna posted this photo to Instagram, May 15, 2015.
See Kaley Cuoco's New Pink Hairdo
This image was posted to Kaley Cuoco's Instagram account on April 29, 2015.
See Jared Leto Out and About With His Joker Hairstyle
Jared Leto shows off his green Joker hair as he rides his bike around Toronto, April 26, 2015. Jared, who wore a puffy jacket, shorts, and tights, is in town filming 'Suicide Squad.'
See Tyra Banks' Super-Short New 'Do
Tyra Banks arrives at the 42nd Annual Daytime Emmy Awards held at Warner Bros. Studios, April 26, 2015, in Burbank, Calif.
Michael Tran/Getty Images
Hilary Duff Dyes Her Hair Yet Again
Actress Hilary Duff smiles while arriving to a studio in Los Angeles on April 23, 2015.
Hilary Duff Just Dyed Her Hair Another Bright Color
This image was posted to Hilary Duff's Instagram account on April 20, 2015.
Khloe Kardashian is seen at LAX on April 07, 2015 in Los Angeles.
See Julianne Hough's New Pink Hairdo
Julianne Hough posted this photo to Instagram on April 7, 2015 with the caption, "Pink hair don't care! Check out my new fun hair and get @riawnacapri's fabulous tips on becoming a "unicorn."
See Katy Perry's Dramatic New Pixie Cut!
Katy Perry posted this photo on Instagram with this caption: "I asked for the Kris Jenner," April 1, 2015.
Jessica Seinfeld Reveals a New Do
Baby Buggy Founder Jessica Seinfeld attends the Inaugural Los Angeles Fatherhood Lunch to Benefit Baby Buggy hosted by Jerry Seinfeld at The Palm Restaurant, March 4, 2015, in Beverly Hills, Calif.
Michael Buckner/Getty Images
Wow! Jared Leto Sports a Short New Hairdo
David Ayer posted this photo to Twitter on March 2, 2015.
Giuliana Rancic Goes Red Days Before the Oscars
Giuliana Rancic is seen in this photo posted to Instagram on Feb. 19,2 015 with the caption, "Closer look at my new hair color!"
Kerry Washington Shows Off a New Bob
Actress Kerry Washington arrives at The Daily Front Row's 1st Annual Fashion Los Angeles Awards at Sunset Tower Hotel, Jan. 22, 2015, in West Hollywood, Calif.
Jon Kopaloff/Getty Images
See Snooki's New, Natural Look
Nicole "Snooki" LaValle posted this photo to Instagram on Jan. 14, 2015 with the caption, "LOVING this. So much easier to maintain and my kids won't have anything to hang off of anymore".
See Kate Bosworth's Cute New Bob
Kate Bosworth is pictured on Jan. 13, 2015 in New York City.
Mike Pont/Getty Images
Chris Hemsworth Goes Brunette
Chris Hemsworth arrives at JFK Airport in New York, Jan. 11, 2015.
Ron Asadorian/Splash News
Amanda Bynes Goes Brunette
Amanda Bynes shared this image of her new hair color to her Twitter, Dec. 25, 2014.
Guess What Color Katy Perry's Hair Is Now!
Katy Perry posted this photo to her Instagram on Dec. 8, 2014 with the caption, "OOTD school girl raincoat vibez."
Gwen Stefani Brightens Up Her Hair
Gwen Stefani attends the KIIS FM's Jingle Ball 2014 held at the Staples Center, Dec. 5, 2014, in Los Angeles.
JB Lacroix/Getty Images
James Franco Rocks a Bald Head and a Bushy Mustache
James Franco arrives 'Gucci Celebrates Flora Knight Collection in Hong Kong with special guests James Franco and Artist Kris Knight' event at California Tower in Central district, Nov. 20, 2014, in Hong Kong.
Anthony Kwan/Getty Images
Robert Pattinson Shaves a Landing Strip Into His Head
Robert Pattinson attends the 7th annual GO GO Gala at Montage Beverly Hills in Beverly Hills, Calif., Nov. 13, 2014, with his hair partially shaved.
Tibrina Hobson/Getty Images
Jessica Simpson Chops Off Her Golden Locks
Jessica Simpson posted this photo to Instagram on Oct. 25, 2014 with the caption,
"Short hair don't care... Cut by my favorite @roqchopand blondie by the best of all time @ritahazan."
Lauren Conrad Cuts Her Hair for the First Time In Years
Lauren Conrad posted this photo to Instagram on Oct. 22, 2014 with the caption, "Got my first haircut in years".
Julianne Moore Lightens Up
Julianne more on the set of "Freeheld" in New York, Oct. 21, 2014
Glenn Close Debuts a New, Short Hairdo
Glenn Close attends 'You Can't Take It With You' opening night at Longacre Theatre, Sept. 28, 2014, in New York City.
Michael Stewart/WireImage/Getty Images
Elle Fanning Reveals a Dramatic New 'Do
Actress Elle Fanning attends the premiere of "The Boxtrolls" at Universal CityWalk, Sept. 21, 2014, in Universal City, Calif.
Jason LaVeris/Getty Images
Wait Till You See Khloe Kardashian's Cornrows
Khloe Kardashian shows off her new hairdo while out and about in Los Angeles, Calif., Sept. 15, 2014.
Bauer-Griffin/GC Images/Getty Images
Dakota Johnson Goes Even Blonder
Dakota Johnson attends The London 2014 Stella McCartney Green Carpet Collection during London Fashion Week at The Royal British Institute on Sept. 14, 2014 in London, England.
David M. Benett/Getty Images
Zosia Mamet Debuts a Bleach Blonde Bob
Zosia Mamet posted this photo on Instagram with this caption: "#RMspring2015," Sept.3, 2014.
James Franco Shaves His Head
James Franco posted this photo to Instagram on Sept. 4, 2014, with the caption, "Bald as a mutha!"
Emma Stone Debuts as Blunt Bob
Emma Stone attends the 'Birdman' Premiere during the 71st Venice Film Festival on Aug. 27, 2014 in Venice, Italy.
Franco Origlia/Getty Images
Did Kelly Ripa Dye Her Hair Red?
Kelly Ripa posted this photo to Instagram, Aug. 26, 2014, with the caption, "One of us just got her hair did."
Malin Akerman Gets a Miley Cyrus-Inspired Hairdo
Actress Malin Akerman attends HBO's Official 2014 Emmy After Party at The Plaza at the Pacific Design Center, Aug. 25, 2014, in Los Angeles.
Jeff Kravitz/Getty Images
Whoa! James Franco Goes Blonde
James Franco posted this photo to Instagram on Aug. 11, 2014 with the caption, "That Late 90s bleached look".
January Jones Sports a New Shaggy 'Do
"Mad Men" star January Jones and her son Xander arrive on a flight at LAX Airport on August 7, 2014 in Los Angeles, Calif.
Tori Spelling Shows Off the Short Haircut She Gave Herself
Tori Spelling posted this photo of herself to Instagram, Aug. 6, 2014, with the caption: "Here's my new hair cut.I chopped it all off myself last nite at midnite. #FutureHairStylist #ShortHairDontCare #MultitaskingMama"
Check Out Bruce Jenner’s Growing Do
Bruce Jenner looked right out of the 80's rock era as he returns to his car after grabbing a coffee at Starbucks in Calabasas, Calif.
Jennifer Aniston Tries a Long Fishtail Braid
Celebrity hairstylist Chris McMillian posted this photo of Jennifer Aniston to Instagram, August 1, 2014, with the caption, "#jenniferaniston #braid #fishtail #summer-hair #unplugged @livingproofinc #lovethisgirl."
Scarlett Johansson Sports a Super-Short New Hairdo
Scarlett Johansson and fiance Romain Dauriac hold hands while out in New York City on July 29, 2014.
Lauren Conrad Goes Platinum Blonde
Lauren Conrad shows off her new hair color in a photo posted to her Instagram account on July 23, 2014.
Whoa! Kesha Dyes Her Hair Light Blue
Singer KeSha is seen, July 22, 2014, in Los Angeles.
SMXRF/Star Max/GC Images/Getty Images
Anna Paquin Shows Off Her New Purple 'Do
Anna Paquin posted this photo to her Twitter, July 16, 2014, with the caption, ".@Auracolorist just fulfilled my teen dream of being a mermaid. @_smoyer whatcha think?"
Whoa: Vanessa Hudgens Chopped Off All Her Hair
Vanessa Hudgens posted this photo to her Instagram on July 9, 2014 with the caption, "And then this happened @ninezeroone @nikkilee901 @riawnacapri always make me happy, meet my summer alter ego, 'miss daisy'."
Wow! Kristen Stewart Chops Off Her Hair
Kristen Stewart arrives to attend the Chanel show as part of Paris Fashion Week - Haute Couture Fall/Winter 2014-2015 at Grand Palais, July 8, 2014, in Paris.
Marc Piasecki/Getty Images
Jennifer Love Hewitt Gets a Brunette Bob
Jennifer Love Hewitt stops to pose for a few photos while out and about in Santa Monica, Calif., June 19, 2014.
Whoa! Hugh Jackman Shaves His Head
Hugh Jackman posted this photo on Instagram on June 10, 2014 with the caption, "Blackbeard is born. #PAN".
You Must See Jessica Chastain's Hot New Look
Jessica Chastain posted this photo to her Instagram, June 7, 2014, after getting a haircut from celebrity hair stylist Renato Campora.
Kaley Cuoco Chopped Off Her Hair!
Kaley Cuoco shared this image, "Thank you @clysmonds for bringing out my inner Peter Pan :) #byronbeverlyhills #justcutitoff" to Instagram, May 31, 2014.
Hilary Duff Debuts a Hot New Look
Actress Hilary Duff posted this self-portrait featuring a brand new hairstyle to her Instagram account on May 29, 2014.
So Long, Pixie Cut! Pamela Anderson Rocks Long Extensions
Pamela Anderson attends the World Music Awards 2014 at Sporting Monte-Carlo, May 27, 2014, in Monte-Carlo, Monaco.
Didier Baverel/Getty Images
Rumer Willis Dyes Her Hair Hot Pink
Rumer Willis posted this photo on Instagram with this caption: "Jem ain't got nothin on me #pinkhairdontcare thank you to @majormoonn for kicking a** today," May 13, 2014.
Adam Levine posted this image to Twitter with this caption: "Apocalypse prep course complete," May 3, 2014.
Kaley Cuoco Chops Her Locks
Kaley Cuoco posted this image on Instagram with this caption: "We did it @clsymonds ! Now let's get some color shall we ? @andylecomptesalon, "April 23, 2014.
Whoa! Andrew Garfield Is Now Sporting a Buzz Cut
From left, Andrew Garfield in Mountain View, Calif., April 21, 2014 and in Rome, Italy, April 14, 2014.
Steve Jennings/Getty Images | Ernesto Ruscio/Getty Images
Zoe Kravitz Goes Blonde!
Actress-singer Zoe Kravitz attends Launch Of CHOO.08 hosted by Jimmy Choo's Sandra Choi on April 15, 2014 in Beverly Hills, Calif.
Donato Sardella/Getty Images
Katy Perry Dyed Her Hair 'Slime Green'
Katy Perry posted this photo on Instagram on April 7, 2014 with the caption, "SLIME GREEN FOR SPRING."
'Mad Men' Star Vincent Kartheiser Displays His Faux Receding Hairline!
Vincent Kartheiser attends the AMC celebration of the 'Mad Men' season 7 premiere at ArcLight Cinemas in Hollywood, Calif., April 2, 2014.
Jason Merritt/Getty Images
Nick Cannon Goes Spotty
Actor Nick Cannon is seen outside "Good Morning America" on March 31, 2014 in New York City.
Raymond Hall/GC Images
Bruce Jenner Grows His Hair Longer
Bruce Jenner is seen in this March 14, 2014 photo after he picks up his RC miniature helicopter toy at the repair shop after a tune up in Los Angeles, California.
Ireland Baldwin Shows Off a Daring Dye Job
Ireland Baldwin posts her new purple 'do on Instagram, March 5, 2014.
Demi Lovato Shaves Part of Her Head
Demi Lovato uploaded this image to her Twitter on March 4, 2014 with the caption, "Last selfie of my shaved head photo shoot. #NEONLIGHTSTOUR."
Daniel Radcliffe Sports Long, Unruly Hair
Daniel Radcliffe accepts the 2014 WhatsOnStage Award for Best Actor In a Play for The Cripple of Inishmaan on Feb. 23, 2014.
Dan Wooller/Rex/REX USA
Taylor Swift Chops Off Her Hair
Taylor Swift posted this image on Instagram with this caption: "London, I could never thank you enough. See you next time! PS: short hair, don't care. (!!!)," Feb. 11, 2014.
Hugh Jackman Rocks a Mullet!
In this Jan 7, 2014 Instagram photo, Hugh Jackman transforms into his character, Vincent, from his upcoming film, 'Chappie.'
Jenny McCarthy Sports a New 'Do
Jenny McCarthy shared this Instagram photo, "New year, new hair. What do you think of the chop?" Jan. 7, 2014.
Daniel Radcliffe Tries Hair Extensions
Daniel Radcliffe during filming of the Graham Norton Show at The London Studios in London, to be aired on BBC One Dec. 13, 2013.
Pamela Anderson Dyes Her Hair Brunette!
Pamela Anderson wears a hat, concealing her new brown, pixie-cut hairstyle at Los Angeles International Airport, Dec. 1, 2013.
Beyonce Goes Blonder Than Ever!
Beyonce seen here before the start of a NBA basketball game between the Oklahoma City Thunder and the Los Angeles Clippers in Oklahoma City, Nov. 21, 2013.
Sue Ogrocki/AP Photo
Jada Makes Braids Look Good
Jada Pinkett Smith arrives at the Los Angeles International Airport sporting zebra print and braids, Nov. 14, 2013.
See Jennifer Lawrence's New Pixie Cut!
Jennifer Lawrence shows off her new pixie cut while headed to Global Fan Day with the Catching Fire cast.
Jennifer Aniston Sports A New Bob
Jennifer Aniston, sporting a new blonde bob haircut, leaves the doctors office, Nov. 4, 2013, in Los Angeles. The actress chopped her locks last week, she said.
Kristin Chenoweth Rocks a Pixie Cut
Celebrity stylist Jonathan Hanousek posted this image of Kristin Chenoweth's new pixie cut to Instagram Oct.31, 2013.
Do You Recognize Pamela Anderson?
Pamela Anderson is spotted with her new, short hair cut in Los Angeles, Oct. 30, 2013.
V Labissiere/Splash News
Wow! Jennifer Hudson Reveals Dramatic New 'Do!
Singer Jennifer Hudson attends Black Girls Rock! 2013 at New Jersey Performing Arts Center, Oct. 26, 2013 in Newark, N.J.
Paul Zimmerman/Getty Images
Check Out Demi Lovato?s Blue ?Do
Singer Demi Lovato attends Glamour Magazine's 15th anniversary party at Casino Del Bosque, Oct. 10, 2013, in Mexico City.
Victor Chavez/Getty Images
Kat Graham's Blue Hair
"Vampire Diaries" star Kat Graham dyed her hair blue and posted this photo to her Instagram on July 5, 2013 with the caption: "Just to f*** with you... :)"
Lauren Conrad's New Bangs
Lauren Conrad posted this photo to her Instagram with the caption "bow bow bang bang @kristin_ess" on May 22, 2013.
Jenny McCarthy's New Shorter Look
Jenny McCarthy, left, shows off her new short, angled bob before a taping of her show, April 11, 2013, and McCarthy attending a benefit at Dream Downtown, April 2, 2013, in New York.
Startraks | Steve Mack/Getty Images
Ellen DeGeneres Goes Brunette
Ellen DeGeneres posted a picture on Twitter showing off her new brown hair in support of actress Reese Witherspoon, who recently ditched her iconic blond hair. April 1, 2013.
Lauren Conrad Accidentally Dyed Her Hair Pink
Lauren Conrad instagrammed herself being covered in pink powder for India's Holi Festival, which accidentally stained her hair pink, March 23, 2013.
Rumer Willis Sports Orange 'Do
Demi Moore's daughter, Rumer, stepped out in Los Angeles March 19, 2013 with an odd mixture of orange and yellow hair.
Sam Sharma/Pacific Coast News
Shaun White Loses his Locks
Shaun White holds up the locks of hair he is donating to charity just after his haircut which he videotaped and posted to his YouTube channel in a clip titled "It's Only Hair."
Arnold Schwarzenegger's 'Bowl' Cut
Arnold Schwarzenegger sports an unusual bowl haircut as he walks to his Bentley convertible after having lunch in Los Angeles, Nov. 1, 2012. The former California governor may have shorn his locks for an upcoming movie role.
Lana Del Rey's Edgy New Look
Lana Del Rey donned an edgy new hairstyle during her recent trip to Paris, France Nov. 14, 2012. The singer debuted bangs and a darker color as she stepped out with her boyfriend Barrie James O'Neill.
Marc Piasecki/FilmMagic/Getty Images
Tia Mowry's Pixie Cut
Tia Mowry said her new hair cut was 'liberating." 'It's very liberating and it definitely saves time," she told <a href="http://www.usmagazine.com/celebrity-beauty/news/tia-mowry-debuts-super-short-pixie-cut-i-cried-20121310" target="external">Us Magazine.</a>
Gregg DeGuire/WireImage/Getty Images
Britney Spears' Rainbow Mane
Britney Spears showed off rainbow locks at the iHeartRadio music festival in Las Vegas, embracing the street style trend of über-temporary hair color.
Isaac Brekken/Getty Images
Maria Menounos debuted a fresh hairstyle when she and Derek Hough stepped out in L.A. for the Bing It On Challenge to test Internet users on what search engine they like best. During the event, the former "Dancing with the Stars" partners challenged each other too: Hough dared Menounos to hula-hoop.
Courtesy Bing/Getty Images
Lena Dunham, star and creator of the new HBO series "Girls," reveals her new shorter hairdo on Twitter. Citing Miley Cyrus' new platinum crop as inspiration, Dunham writes, "'I Miley'd the s*** out of this Saturday."
Jennifer Lawrence goes brunette
"Hunger Games" actress Jennifer Lawrence showed off a new darker look with her new brunette hairdo at the 2012 Toronto International Film Festival. She attended the premiere of "Silver Linings Playbook."
Terry Rice/Getty Images
Jessica Alba Goes Blonde
Jessica Alba said bye to her brown locks. She <a href="https://twitter.com/jessicaalba/status/238749272965799936">tweeted</a>, "Bye Bye Brown Hair" r u on viddy yet? I'm documenting my brown to Sin City blonde" on her handle @jessicaalba on Aug. 23, 2012. She posted a <a href="https://twitter.com/jessicaalba/status/239556779091046400">pic of her new look</a> on Aug. 26, 2012.
At the premiere of "For A Good Time, Call..." Aug. 21, 2012 in New York City, "Mad Men" actress Elisabeth Moss debuts a new short blonde hairdo.
Jason Kempin/Getty Images
Christina Aguilera's Purple Locks
Christina Aguilera showed up to a press junket and cocktail reception for "The Voice" Aug. 12, 2012 in Los Angeles, Calif., sporting a new hairdo. The singer brightened her platinum blonde locks with purple highlights.
Christopher Polk/NBCUniversal/Getty Images
Miley Cyrus chopped hairdo
Miley Cyrus posted a photo of a new edgy haircut to her Twitter page, Aug. 12, 2012. "Never felt more me in my whole life," she tweeted after chopping her signature long locks.
Cameron Diaz and Portia de Rossi
Actress pals Cameron Diaz and Portia de Rossi have a salon date at Salon & Benjamin in West Hollywood, Calif., Aug. 9, 2012. The stars, both 39, emerged from the salon with similar platinum blonde dos.
Connor Cruise Gets A New Hair-Cut
Connor Cruise gets a new hair-cut. He tweeted his photo https://twitter.com/TheConnorCruise and http://instagram.com/p/NSwjH3mxuc
January Jones Becomes a Redhead
January Jones is seen sporting a new red hairdo while attending a party with son Xander at Joel Silver's house in Malibu, Calif., June 17, 2012. No word on whether this is just a new look or a for a new role.
National Photo Group
Charlize Theron is pictured here with her son Jackson sporting a newly shaved head. It is believed that the actress, who currently stars in Ridley Scott's space thriller "Prometheus," shaved her blonde locks off for a new role.
Roshan Perera/Splash News
Kate Upton's Bad Hair Day
Model Kate Upton tweeted a photo of herself on the set of a photo shoot showing her back-combed, frizzy hairdo on March 11, 2012.
Watch out, Emerald City. Pop star Nicki Minaj sported a bright green, curly hairdo for the cover of PAPER's spring fashion issue. Minaj told the magazine she draws inspiration for her often flash, over-the-top style from Janet Jackson and '80s icons Cyndi Lauper, Boy George and Grace Jones.
Courtesy PAPER magazine
Willow Smith has no hair to whip anymore. The 11-year-old daughter of Will Smith and Jada Pinkett-Smith and singer of the 2010 hit "Whip My Hair" shaved her head bald. She revealed her new look on Twitter.
Kate Winslet rocked a platinum blonde pixie cut on the cover of British Vogue magazine.