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?

KIM KARDASHIAN

The reality star certainly doesn't blend in thanks to this bright red curve-hugging lace number by Valentino, worn with strappy black heels to promote her new True Reflection perfume in London.