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


By day, she's a modern-day flower child (center), but by night the actress is every bit the sophisticate (left, in Diane von Furstenberg; right, in Phillip Lim).