People.com's Halloween Party

Star Halloween Costumes of 2011

From Fergie's pageant queen to Jennifer Garner's witchy woman, see Hollywood's wild and wacky getups

KELLY RIPA & NICK LACHEY

The Live! host and Lachey take their costumes to new heights Monday as reality TV's most buzzed-about (and now broken-up) couple, Kim Kardashian and Kris Humphries, during the chatfest's Halloween Headliner Ball in New York City.