Jessica Simpson arrives at JFK airport in New York, Oct. 26, 2016.

Jessica Simpson and Eric Johnson are seen arriving at JFK Airport, Jan. 12, 2016 in New York.

Jessica Simpson posted this photo to Instagram on Dec. 24, 2015 with the caption, "Twinning."

Jessica Simpson arrives to the East Village hotel, Sept. 10, 2015 in New York.

Jessica Simpson and Eric Johnson are seen entering East Village hotel in New York City, Sept. 8, 2015.

Jessica Simpson posted this photo on Instagram July 2, 2015.

Jessica Simpson is seen outside a friend's birthday party in Hollywood, Calif. on June 20, 2015.

Jessica Simpson posted this photo to Instagram, May 4, 2015, with the text, "May 1 my Maxi Drew turned 3.... I am in complete denial."

Former NFL player Eric Johnson and singers Jessica Simpson and Ashlee Simpson attend a special preview of 'The Gleason Project' at ZEFR Warehouse, April 23, 2015, in Venice, Calif.

Jessica Simpson posted this image on Instagram with this caption: "Easter feasting #peepsforever," April 7, 2015.

Jessica Simpson shared this image of her son Ace, March 22, 2015.

Jessica Simpson posted this on Instagram with this caption: "Caught in the atmosphere #sacredselfie," March 17, 2015.

Jessica Simpson and Eric Johnson are seen in SoHo, March 15, 2015, in New York.

Jessica Simpson is seen in a photo posted to her Instagram account on Feb. 18, 2015 with the text, "Come On Baby, Light My Fire..."

Jessica Simpson posted this Instagram photo with this caption: "The Tongue The Polka Dot and The Cloak," Jan. 20, 2015.

Jessica Simpson posted this photo to Instagram, Jan. 5, 2015, with the caption, "A January Swim #FEARLESS"

Eric Johnson and Jessica Simpson are seen at the 'The Hunger Games: Mockingjay Part 1' film premiere in Los Angeles.

Jessica Simpson and Eric Johnson seen at Los Angeles International Airport, Nov. 16, 2014, in Los Angeles.

Jessica Simpson posted this photo to Instagram, Nov. 9, 2014, with the caption, "Loving my new @jessicasimpsonstyle sunnies at sunset with @kathrynsykora #sunsetselfie."

Jessica Simpson was spotted leaving a restaurant with family in Calabasas, Calif. on Oct. 8, 2014.

Jessica Simpson posted this photo on Oct. 4, 2014 with the caption, "Not gonna lie... It took about 3 washes to get this fantastic mask off. See ya again tomorrow"

Jessica Simpson, left, and Eric Johnson, right, are seen on Oct. 1, 2014 in New York City.

Actress/Singer Jessica Simpson is seen in Soho on September 24, 2014 in New York City.

Jessica Simpson and her husband Eric Johnson leave Gjelina Restaurant in Venice Beach, Calif., Aug. 21, 2014.

Jessica Simpson posted this photo on Instagram with this caption: "Yummy," July 21, 2014.

Jessica Simpson posted this photo on Instagram with this caption: "Jessica Johnson," July 15, 2014.

Jessica Simpson posted this image on Instagram with this caption: "And the sun sets on 33," July 10, 2014.

Jessica Simpson posted this photo on Instagram with this caption: "Hiding from the paparazzi, so why not pose for Eric?" June 21, 2014.

Jessica Simpson is seen at LAX on June 12, 2014 in Los Angeles, Calif.

Jessica Simpson seen at LAX on June 10, 2014 in Los Angeles, Calif.

Jessica Simpson posted this photo on Instagram with this caption: "Eric's driver," May 27, 2014.

CaCee Cobb posted this photo with friend Jessica Simpson on Instagram with this caption: "Bosom Buddies," May 25, 2014.

Jessica Simpson posted this on Instagram with this caption: " I can't wait to marry you!!! Best 4yrs of my life!!! Thank you @tomeverhartstudio for being an amazing mentor to us all. Happy Birthday...again :)" May 22, 2014.

Jessica Simpson posted this photo to Instagram on May 18, 2014 with the caption, "Took on the challenge of being the photo assistant to the raddest chick @kristingram for the most beautiful mommy to be @laurenz422 yesterday! Let's do it again! So fun!"

Jessica Simpson attends Forbes Women's Summit: The Entrepreneurship of Everything in New York, May 15, 2014.

Jessica Simpson and Eric Johnson are seen at Los Angeles International airport, May 04, 2014 in Los Angeles, Calif.

Jessica Simpson shows off her skinny legs in Calabasas, Calif., March 23, 2014.

Jessica Simpson posted this image to her Instagram account Feb. 13, 2014 with the caption, "My mom's thoughts for me... 'Hi everyone! I know, I'm the cutest lil lady you ever did see.'"

Jessica Simpson posted this image on Instagram with this caption: " Chasing shadows," Feb. 10, 2014.

Jessica Simpson is seen walking in Soho, Jan. 29, 2014 in New York City.

Jessica Simpson posted this photo of herself with her daughter Maxwell on Instagram on Jan. 15, 2014 with the caption, "Love this lil lady more than anything!".

Jessica Simpson attends the 27th Annual Footwear News Achievement Awards at the IAC Building, Dec. 3, 2013, in New York City.

Ace Johnson, Jessica Simpson, Eric Johnson and Maxwell Johnson attend a Jessica Simpson Collection event at Dillard's ,Nov. 23, 2013 in Dallas.

Pregnant Jessica Simpson and fiance Eric Johnson were spotted out for lunch in Los Angeles, Calif. on June 22, 2013.

Jessica Simpson, wearing Jessica Simpson Maternity, with her daughter Maxwell Johnson and Ashlee Simpson, wearing a Jessica Simpson dress, visit Belk Southpark on March 23, 2013 in Charlotte, North Carolina.

Jessica Simpson stopped by Don Cuco in Studio City, Calif., to eat some Mexican food with her family, Feb. 18, 2013. "Happy Birthday @PapaJoeSimpson !! I love you very much!" she tweeted to her father, Joe Simpson, that day.

Jessica Simpson showed off her baby bump during a lunch date at the Cheesecake Factory with her fiancé Eric Johnson and pal CaCee Cobb, Feb. 16, 2013. Simpson is pregnant with her second child.

Baby number two is on the way for Jessica Simpson. The "Fashion Star" was spotted showing off her new baby bump on the way to the gym Feb. 6, 2013. The actress confirmed that she was expecting a second child with husband Eric Johnson on Christmas day after reportedly shedding 70 pounds with the help of Weight Watchers following her first pregnancy.

Jessica Simpson showed off her baby bump in a Twitter photo posted on Dec. 30, 2012. The singer and TV personality spent the holidays in Hawaii with fiancé Eric Johnson and their 7-month-old daughter. On Christmas Day, the star announced via Twitter the couple is expecting baby number two.

Jessica Simpson shared a holiday photo with her fans on Twitter, posting this pic from Hawaii on Dec. 27, 2012.

Jessica Simpson tweeted a photo of her daughter Maxwell sitting behind the words Big Sis drawn in the sand.

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Jessica Simpson showed off her legs and continuing weight loss in L.A. on Oct. 1. The new mom and Weight Watchers spokeswoman revealed her thighs in short black shorts and towering heels. She recently told Katie Couric that she's lost more than 40 pounds since giving birth in May.

Jessica Simpson's 40 pound weight loss was on display when she stepped out for dinner with fiance Eric Johnson in New York. The singer, reality TV star and new mom appeared on the premiere of "Katie" to talk about the challenge of losing pregnancy weight.

Jessica Simpson showed her stars (sans stripes) on the Fourth of July, tweeting a photo of her and fiancé Eric Johnson with their new daughter. She took time away from her weight loss schedule to enjoy fireworks.

New mom Jessica Simpson continues her battle of the bulge, arriving at the gym of her long-time personal trainer Harley Pasternak on July 2, 2012. The pop star, who just gave birth to daughter Maxwell Drew, has vowed to lose 50 pounds for her upcoming Weight Watchers campaign.

Jessica Simpson posted a photo June 26 of her 8-week-old baby girl, Maxwell Drew. "Howdy friends," she tweeted alongside the photo.

Jessica Simpson has been working up a sweat as part of her post-pregnancy weight-loss plan. "Just taking a walk around the block," she tweeted Friday, alongside a rather revealing snapshot.

Jessica Simpson first broke onto the music scene with her single "I Wanna Love You Forever" in 1999.

Soon after they married, Simpon and Lachey starred on MTV's realtiy series "Newlyweds." Simpson's infamous confusion about whether she was eating "chicken or fish" became a national punch line.