Last Night's Look: Love It or Leave It?We can't stop talking about Kristen Stewart's underwear-baring ensemble, Jessica Lowndes's sexy LBD and more outfits that stars were just spotted in. Check them out, then vote – fashion-forward or fashion fail?

JENNIFER LAWRENCE

You already know our feelings about this look; now it's time for you to weigh in on J.Law's asymmetrical billowy pants and crop top (both Christian Dior), worn to the designer's show in Paris.