Chappell Roan... WOW!! On Sunday night, the Good Luck, Babe! singer took to the Grammys red carpet and had everyone's eyes falling out of their heads with her super sexy sheer look! The 27-year-old dazzled in a custom Mugler gown that matched her auburn hair perfectly. The dress had a sheer shoulder piece, but then she took it off to reveal the real show stopper - the topless feature! The skirt, already being super sheer and showing off her undies, was attached to faux nipple rings.