Last Night's Look: Love It or Leave It?We can't stop talking about the outfits Katy Perry, Amy Poehler and more stars were just spotted in! Check them out, then vote – fashion-forward or fashion fail?

SALMA HAYEK

Yesterday, we were all buzzing over how one star didn't wear undergarments, but now we're just focused on Salma's on-display bra, visible through the keyhole cutout in her jade-green Saint Laurent maxi, selected for Les P'tits Cracks charity dinner in Paris.