5 Seconds Of Summer Are Teenage Dreaming About Katy Perry! Check Out The AH-Mazing Performance HERE!

On Monday, 5 Seconds of Summer stopped by The Elvis Duran Z100 Morning Show and performed a cover of Katy Perry's Teenage Dream!! After chatting with host Elvis Duran about their rapidly growing fan base and performing their single, Amnesia, the group paid an AH-Mazing homage to Katy! We absolutely love Katy, so we think the boys