Who's the Best-Dressed Star?

Weigh in on the style of Jennifer, Beyoncé, Jessica and 17 other celebs – then see who makes the top of the list in PEOPLE's Best & Worst Dressed issue, on newsstands Sept. 15. By Serena Kappes and Melissa Liebling-Goldberg

KATE BOSWORTH

Always up for trying new designers, the golden girl is making her mark on the cutting edge of fashion (left, in a Chloe top and Superfine jeans; center, in Gucci; right, in Calvin Klein).