Last Night's Look: Hit or Miss?

Vote on the outfits Ashley Olsen, Jennifer Lawrence and more stars rocked this week! You decide – are they fashion-forward or fashion flops?

JENNIFER LAWRENCE

Business in the front and party in the back! The actress chooses a backless black dress with gilded ankle-strap heels, sleek strands and a glossy red pout for The Hunger Games's Paris premiere.