Katy Perry showed off rainbow highlights and a sexy dress by Marchesa tonight. The black and white color palette keeps things crisp, while sheer pockets and intricate embroidery inject major sass. Black star-embellished Jimmy Choo sandals, Sutra earrings, and a ring from M.C.L. by Matthew Campbell Laurenza finish off her fun and fierce look. What's your verdict?Vote on all of my MTV VMAs polls here!