Last Night's Look: Love it or Leave it?Check out the head-turning outfits Kim Kardashian, Duchess Catherine and more stars were just spotted in! Then decide – fabulous or fashion fail!

ALLISON WILLIAMS

Also at the N.Y.C. premiere of The Master, the Girls star goes for major impact with minimal styling, wearing nothing but a body-hugging red Stop Staring! dress and nude Casadei sandals.