The sexy duo show off their moves in New York City. Plus: Ashlee, Beyoncé and more

DIRTY DANCING

Justin Timberlake and girlfriend Cameron Diaz heat up the dance floor at Timberlake's Halloween bash on Monday at Manhattan nightclub Marquee. The couple and their entourage of about eight pals – who partied until the club closed at 4 a.m. – wore Eyes Wide Shut-themed outfits: formalwear plus elaborate masks.