Celeb Fashion Hit or Miss

Vote on this week's styles from Mary-Kate Olsen, Rihanna, Blake Lively and more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

26 of 34

SIENNA MILLER

The British actress celebrates her nomination at the Film Independent's Spirit Awards in a Monique Lhuillier lace dress and a Rodo clutch.