On Sunday, Fifth Harmony added some much-needed sexiness to the American Music Awards in LA. First, the girls slayed the red carpet in matching looks, then they took the stage to perform their new song, "That's My Girl." While it seems that the set took the ladies to some kind of apocalyptic junkyard, their singing and moves were certified fresh. The performance comes just after Lauren Jauregui came out as bisexual in an open letter to Donald Trump. Watch the girls shut it down above.