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The 2014 Grammy Awards' 10 Greatest Onstage Performance Looks
Despite the stunning gowns on tonight's Grammys red carpet, the fashion moments during the actual show might've be more memorable. This year's batch of musical acts really brought their A game in the wardrobe department, taking stage in all manner of incredible costumes, including a sexy cutout leotard (who else but Beyoncé), diamond-encrusted dress (Tay-Tay, of course) and a light-up bandeau bra (that would be Katy Perry). For 10 of our favorite onstage looks—including the three we just mentioned—click through the slideshow above.