Celeb Fashion Hit or Miss?

Vote on this week's styles including Mary-Kate Olsen, Paris Hilton and more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

FERGIE

The singer joined rapper Nelly on the BET Awards stage to perform "Party People" in a sparkling DSquared minidress, lavender MEMBERS ONLY leather jacket, Chanel boots and Cartier jewels.