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

4 of 12

TAYLOR SWIFT

Lady in red! The usually demure country singer opts for a more grown-up look – and totally pulls it off thanks to a stunning red Elie Saab gown with sheer lace paneling, plus Neil Lane jewelry.