Last Night's Look: Love It or Leave It?We need to talk about Gabrielle Union's flowy number, Carey Mulligan's black-and-white look and other outfits stars were just spotted in. Check them all out, then vote – fashion-forward or fashion fail?

KATE MOSS

On the other hand, Kate turns it out for a Louis Vuitton exhibition in Tokyo, wearing a head-turning yellow design featuring flutter sleeves, a plunging, embellished neckline and a slim metallic belt, plus killer platform sandals and a glam red lip.