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Emma Stone

BERLIN, GERMANY - FEBRUARY 15: Actress Emma Stone attends 'The Croods' Premiere during the 63rd Berlinale International Film Festival at Berlinale Palast on February 15, 2013 in Berlin, Germany. (Photo by Pascal Le Segretain/Getty Images)

Worst-Dressed Celebs -- Week of 2/18

Vanessa Hudgens, Selena Gomez, and Oprah delivered this week's biggest fashion flubs. -- By Matt Whitfield