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!
Canadian pop-punk goddess Avril Lavigne, backed by a plethora of camo-clad backup dancers equipped with T-shirt guns, still knows how to entertain a crowd as she dove into a string of her hit singles - even bringing out a boombox-carrying shark during "Here's to Never Growing Up."
As much as we love chanting along to "Girlfriend" and "What the Hell, nothing could top the end when she went in to her classic first hit, "Sk8r Boi" - can you believe that song is 11 years old and it's still awesome? We can.