Celeb Fashion Hit or Miss?

Vote on this week's styles including Sienna Miller, Julia Roberts and more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

Credit: Matrix/Flynet

Updated: Friday Jun 20, 2008 | 11:40 AM EDT

MISCHA BARTON

The actress shows off a darker hair color and a mismatched melange of yellow shorts, printed vest and ruffled blouse at the Billionaire Boys Club launch at Harvey Nichols.