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Margot Robbie

Margot Robbie, of I, Tonya, stunned in a white Chanel number. Her gown choice makes sense, since Robbie is the brand’s new ambassador. Her nomination in the Best Actress category was her first. (Photo: Getty Images)

Oscars 2018 red carpet: See what the stars wore

The biggest celebrities walked the red carpet at Sunday’s Oscars in Hollywood, Calif. Click through to see all your favorite stars.