Beyoncé’s feathered ombré Givenchy, Kate Moss’s golden turban, Sarah Jessica Parker’s tartan Alexander McQueen, Erykah Badu’s glittering top hat. Every year, the most stunning, most avant-garde, and most talked-about clothes make their way up the stairs of the Metropolitan Museum of Art for the biggest fashion event of the year: the Costume Institute Gala. Here, we bring you our slideshow of the most unforgettable looks from the ball of all time.