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


"I love to mix vintage with things that are in now," says the singer-actress about her style philosophy, which ranges from boho chic (left, in a Catherine Malandrino top) to old-school Hollywood glamorous (center, in Roberto Cavalli).

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