Popsugar Fashion Met Gala Sexiest Dresses at Met Gala 2014 A Formal Theme Doesn't Keep Sexy Away May 5, 2014 by Leah Melby View On One Page Photo 2 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Beyoncé at the Costume Institute Ball Beyoncé went bold in a Givenchy Haute Couture mousseline dress embroidered with a mix of crystals, stones, and studs. Under it, she wore a bodysuit and fishnets. Previous Next Start Slideshow Met GalaRed Carpet