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!
Take back the night ... or the last 30 years, with Justin Timberlake has he covers Michael Jackson's 1978 hit "Shake Your Body."
JT covered the disco song on BBC1's Live Lounge, and totally did it justice. Shake your body, and check it out below!