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!
Macklemore recently went to the Justin Timberlake concert in Seattle ... and he must have REALLY wanted a selfie during the concert with JT because he rushed the stage to do it!
The rapper was shut down buy security, but he and Justin eventually got to hang out ... along with some Seattle Seahawks!
Check it out below!
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