Ciara returned to the American Music Awards stage on Tuesday night for the first time since 2005, and damn did she make a hell of a comeback! Joined by the iconic Missy Elliott, Ciara performed her hit single "Level Up [1]," which went viral after spawning the Level Up challenge [2]. As amazing as those challenges [3] were, Ciara's performance proves that you just can't beat the original. From Missy's fiery verse to Ciara's outrageously sexy moves, the performance was nothing short of show-stopping. Watch their electrifying performance ahead!