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!
Justin Timberlake appeared on 'Jimmy Kimmel Live' Tuesday night, where he talked about sharing the stage with Paul McCartney at the iHeartRadio Music Festival (he says technically, a Beatle opened for him). JT also discussed his new album, The 20/20 Experience Part 2 (out September 30th) and movie, Runner, Runner, which hits theaters October 4th.
Check out the interview below.