People.com Halloween Party

Silly, Sexy, Cool : Star Halloween Costumes!

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

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.