Steve Baltin As announced this morning, the iHeartRadio Music Awards will return to Los Angeles’ Dolby Theater on May 27 with Usher set to host and The Weeknd with Ariana Grande, Bruno Mars and Anderson .Paak as Silk Sonic, Dan + Shay and Doja Cat, among others, slated to perform. Also on deck: a tribute to Elton John (pictured) featuring Coldplay’s Chris Martin and Lil Nas X.