Celeb Fashion Hit or Miss?

Vote on this week's styles including Jennifer Aniston, Eva Mendes and more stars! You decide – are they fashionistas or flops?

Credit: Kevork Djansezian/Getty

Updated: Friday Feb 27, 2009 | 11:30 AM EST

JESSICA BIEL

The Oscar presenter went for architectural chic in her white satin Prada gown and Louis Vuitton jewels.