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

NICOLE SCHERZINGER

Joining the ranks of stars rocking dresses with thigh-high slits, the singer shows a sliver of skin in a Cengiz Abazoglu gown and adds Vanessa Leu gems and an Adeler ring.