Last Night's Look: Hit or Miss?

Vote on this week's styles including Kim Kardashian, Claire Danes and more stars! You decide – are they fashionistas or flops?

SIENNA MILLER

The fashion darling dares to bare her décolletage in a below-the-knee, gathered chiffon peplum dress with gray Stella McCartney pointed heels at the Esquire House LA's opening night.