Celeb Fashion Hit or Miss

Vote on this week's styles from Posh, Miley and 61 more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

LUCY LIU

The Cashmere Mafia star tells PEOPLE that her bow-topped dress is "absolutely" Gucci – one of the host's of the charity event benefitting African children affected by HIV/AIDS.