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!
What the fox say? We all now know, thanks to Norwegian YouTube sensations Ylvis. But the guys are back with a new song - a nod to the home of one of this year's World Series contenders: Massachusetts.
Check it out below: