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

LANCE BASS & KIM KARDASHIAN

Look who Wonder Woman ensnared in her magic lasso! Dressed as the comic-book superhero Halloween '08, Kardashian stayed close to the new grad at L.A.'s Stone Rose, where the reality star cohosted a Halloween masquerade bash with PAMA.