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

KATY PERRY

The singer almost makes us forget about her cutesy costumes with this classic salmon-pink sheath with ruffled details, which she wears with a jeweled belt and heels (all by Oscar de la Renta), along with Sally Sohn earrings and an Effy ring, to accept Billboard's "Woman of the Year" award in N.Y.C.