Heidi Klum attends the 2013 Heidi Klum Halloween Party at Marquee, Oct. 31, 2013 in New York City.

Kelly Ripa participates in the New York City 40th Annual Village Halloween parade, Oct. 31, 2013 in New York City.

"Dancing With The Stars" contestant Jack Osbourne and his wife Lisa Stelly attend Derek Hough's Halloween party at Hooray Henry's in West Hollywood, Calif., Oct. 30, 2013.

Fergie and Josh Duhamel are barely recognizable arriving at Kate Hudson's Halloween party, Oct. 26, 2013, by motorcycle.

Vanessa Hudgens attends a star-studded Halloween party in Beverly Hills, Calif., Oct. 25, 2013.

"Two droids and a wookie. #happyhalloween," Chris Colfer posted to his instagram, Oct. 27, 2013.

Shenae Grimes and her husband Josh Beech were dressed in Halloween costumes as they were seen leaving Bootsy Bellows night club in West Hollywood, Calif., Oct. 29, 2013.

Christina Milian attends a Halloween party, Oct. 29, 2013, in West Hollywood, Calif.

Elizabeth Berkley gets into the Halloween spirit by donning zombie makeup on her way to a party in West Hollywood, Calif., Oct. 29, 2013.

Hugh Hefner and girlfriend Crystal Harris spoof Robin Thicke and Miley Cyrus' infamous performance at the 2013 VMAs in a photo Hefner tweeted on Oct. 26, 2013.

Goldie Hawn and Kurt Russell look like they're dressed for Oktoberfest as they attend a Kate Hudson's Halloween party in Los Angeles, Oct. 26, 2013.

Paris Hilton dressed as Miley Cyrus arrives at the Playboy Mansion Halloween party in Los Angeles, Oct. 26, 2013.

Nicole "Snooki" Polizzi and her fiance Jionni Lavalle with their son Lorenzo Lavalle celebrate Halloween in their costumes dressed as characters from 'The Wizard of Oz,' Oct. 24, 2013, in Whippany, New Jersey.

In the spirit of Halloween, Nicole Richie arrives at the Who What Wear And Cadillac's 50 Most Fashionable Women Of 2013 Event dressed as a sexy, flapper kitty at The London Hotel, Oct. 24, 2013, in West Hollywood, Calif.

Rumer Willis got into the Halloween spirit with her dogs, and some friends (not pictured), dressed as a leopard in photos she posted on her Instagram account, Oct. 22, 2013.

Melissa Gorga and daughter Antonia arrive at a friend's Halloween party in matching mom and daughter 'Wonder Woman' costumes, Oct. 20, 2013, in Montclair, New Jersey.

Zuma Rossdale heads to a Halloween party at his school dressed as the Red Ranger from 'Mighty Morphin Power Rangers,' Oct. 19, 2013, in Los Angeles.

Sandra Bullock and son Louis, get into the Halloween spirit with scary skeleton costumes as they head to a party in Studio City, Calif., Oct. 19, 2013.

Neil Patrick Harris and his brood shared this adorable image of himself and family in their 'Alice in Wonderland' inspired costumes via his Instagram account, Oct. 20, 2013.

Child actor Rico Rodriguez arrives, dressed as a zombie, to the Hub Network's First Annual Halloween Bash at Barker Hangar, Oct. 20, 2013, in Santa Monica, Calif.

Getting into the Halloween spirit early, Bethenny Frankel takes daughter Bryn Hoppy, who is dressed as a Monarch butterfly, for a stroll around TriBeCa, Oct. 16, 2013, in New York City.

Real Housewives of Beverly Hills star Kyle Richards gets into the Halloween spirit with her daughter Portia, in a puppy-painted face, at Mr. Bones Pumpkin Patch, Oct. 12, 2013, in Los Angeles.

Tigress Nahla Aubry, Halle Berry's daughter with Gabriel Aubry, looks for the perfect pumpkin with Olivier Martinez (not pictured) at Mr. Bones Pumpkin Patch in Los Angeles, Oct. 8, 2013.