Home > Photos > Celebrity Halloween Costumes
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Talk show host Ellen DeGeneres dresses as actress Sofia Vergara during a taping in Burbank, Calif.
Michael Rozman/Warner Bros./AP
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Kim Kardashian, dressed as a mermaid, attends the Midori Green Halloween Party in New York City.
Dave Kotinsky/Getty Images
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Co-hosts Matt Lauer as Prince William, chef Giada De Laurentiis as Katy Perry, and Al Roker as Prince Harry are shown on the NBC "Today" show's annual Halloween edition in New York.
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Singer Katy Perry and actress Shannon Woodard dressed up as retro MTV animated characters Daria and her best friend Jane Lane as they attended a party at the Hollywood Forever Cemetery.
via Twitter @KatyPerry
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Leann Rimes and husband Eddie Cibrian as Danny and Sandy from Grease.
via Twitter @LeannRimes
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Christina Millian, right, dressed as dracula, poses with friends on Halloween.
via Twitter @CMilianOfficial
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Singer and actress Jessica Simpson dressed up on Halloween.
via Twitter @JessicaSimpson
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Holly Madison, a star of "The Girls Next Door," and a friend dressed up in an "Alice in Wonderland" theme.
via Instagram @hollymadison
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Jennifer Lopez and friends as hippies on Halloween.
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Singer Fergie and actor Josh Duhamel dress up as model/actress Angelyne and filmmaker Dennis Woodruff.
via Instagram @Fergie
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Miley Cyrus dressed up as singer Nicki Minaj.
via Twitter @MileyCyrus
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"Glee" star Matthew Morrison as Justin Timberlake alongside musician Brad Ellis as Beethoven.
via Twitter @MatthewMorrison
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Hugh Hefner and girlfriend Crystal Harris at the Playboy Mansion before Halloween dinner.
via Twitter @Hugh Hefner
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Actress Lauren Conrad and boyfriend William Tell.
via Instagram @laurenconrad
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Actress Jessica Alba and family dressed up as characters from "The Incredibles."
via Twitter @JessicaAlba
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Actress and model Stacy Keibler hosts a Halloween masquerade party at Hyde Bellagio in Las Vegas.
Steven Lawton/Getty Images for Hyde Bellagio
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"Glee" star Chris Colfer as a guillotine.
via Twitter @ChrisColfer
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Actress Lucy Hale dressed as a unicorn.
via Instagram @lucyhale89
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Jenny McCarthy dressed up as a sexy kitten at her 40th Birthday Halloween night party at Gallery Nightclub in Las Vegas.
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