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

OPRAH WINFREY

The media mogul flatters her figure in tailored pieces belted at the waist (center, in Vera Wang) – the better to focus on her impressive jewelry collection!