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: Stephen Lovekin/Getty

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

RIHANNA

The singer gets edgy at TRL in a black leather Thomas Wylde jacket, Made Her Think jewelry, a miniskirt and Giuseppe Zanotti lace-up boots.