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

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CHARLIZE THERON

The statuesque Oscar winner is the ultimate red-carpet queen (right, in Collette Dinnigan), but even in her off-duty hours, she's always fashion-forward (left, in a trendy striped top and skinny jeans).