Photos

Celebrity photos: Dec. 13, 2010

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Talk about holiday spirit: Katy Perry makes for a stunning Mrs. Claus at the Y100 Jingle Ball in Miami, where she performed.

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Kim Kardashian hangs out backstage in the Just Jared lounge at the Y100 Jingle Ball in Miami, Fla., where she presented one of the awards.

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Don't mess with the disk: Funnyman Will Ferrell goes for laughs at the "TRON: Legacy" premiere in Hollywood, Calif.

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Lady in red: Sirinda Swan joins the stars at the world premiere of "TRON: Legacy" at the El Capitan Theatre in Hollywood, Calif.

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Joe Jonas at the "TRON: Legacy" premiere in Hollywood, Calif.

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He's a traveling man: Keith Urban arrives in Sydney, Australia.

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Actress Yaya DaCosta at the "TRON: Legacy" premiere in Los Angeles.

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Actress Sarah Shahi at Miss Golden Globe in West Hollywood, Calif.

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Olivia Wilde goes for the gold at the world premiere of "TRON: Legacy" at the El Capitan Theatre in Hollywood, Calif.

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Jeff Bridges at the "TRON: Legacy" afterparty in Hollywood.

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It's a red-leather day for "X Factor" judge Cheryl Cole wears red trousers for the final show of this season in London/

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"Tru Blood" heasrtthrob Ryan Kwanten at the William Rast for Target VIP Shopping Party in Los Angeles.