Style Standouts at the Billboard Music AwardsCheck out what Miley Cyrus, Carrie Underwood, Katy Perry and more rocked on one of music's biggest nights

CARRIE UNDERWOOD

The country star looks straight out of a fairy tale in a tulle, layered gray-and-blue Oscar de la Renta confection paired with a geometric sparkly clutch and peep-toe pumps, also by the line.