Lights, Camera, Fashion!

See the stars, including Beyoncé, Mary-Kate and Ashley, and Uma, as they check out the hottest new looks at New York's Fashion Week. By Serena Kappes with Lisa Ingrassia

STRIKE A POSE

Ashanti, Sean "P. Diddy" Combs and Zac Posen celebrate at a party following Posen's show Thursday. Combs has a stake in the designer's success: He's an investor in Posen's hip line.