FILE - This Feb. 12, 2017 file photo shows Bruno Mars performing at the 59th annual Grammy Awards in Los Angeles. Mars, Katy Perry, Ed Sheeran, Shawn Mendes and The Chainsmokers will perform at Sunday's iHeartRadio Music Awards. The show will air live at 8 p.m. Eastern on TBS, TNT and truTV. (Photo by Matt Sayles/Invision/AP, File)
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