Nicki Minaj (left) and Madonna perform during the halftime show at the Super Bowl in February. In a song from Madonna's new album, MDNA, the two singers each play with traditionally feminine and masculine gender roles.
Rob Carr/Getty Images
Madonna (center), flanked by Nicki Minaj and M.I.A., during a performance of her new single "Give Me All Your Luvin'" during the Bridgestone Super Bowl XLVI Halftime Show in Indianapolis.
Christopher Polk/Getty Images