Celeb Fashion Hit or Miss?

Vote on this week's styles from Renée Zellweger, Mariah Carey and more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

JENNIFER LOPEZ

The new mom of twins shows off her slim post-babies body in a draped black Reem Acra cocktail dress at the Shine a Light premiere in N.Y.C.