JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
Jimmy Fallon and Halle Berry formed their very own Human Hamster Wheel and rolled through The Tonight Show studio! Not gonna lie, we're kind of impressed!