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

ALICIA KEYS

The singer trades her tomboy favorites for a totally glam, girlie-girl look at an N.Y.C. gala for her charity, Keep a Child Alive. She wears a fitted burgundy gown with a shimmery choker and a sleek black clutch.