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Silly, Sexy, Cool : Star Halloween Costumes!

From Mariah's naughty firefighter to Kim's Wonder Woman, see how celebs reveal their alter egos

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PARIS HILTON

One night, two looks! The heiress makes a seductive statement as a sexy sailor and then changes it up as a tarty Alice in Wonderland for a 2007 party at the Playboy mansion.

Boo! Hollywood's Real Ghost Hunters!

Boo! Hollywood's Real Ghost Hunters!

Is Leighton a fraidy-cat? Does Anna believe in ghosts? Find out who jumps at things that go bump in the night!

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