Celeb Fashion Hit or Miss?

Vote on this week's styles from Tyra Banks, Paris Hilton and 36 more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

MARY-KATE OLSEN

The Olsen sister shows off an uncharacteristically simple look in a satin vintage Calvin Klein jumper and straight hair at the afterparty for a N.Y.C. screening of 21.