Entertainment Awards Shows and Events The iHeartRadio Music Awards Were Packed with Performances: Check Out the Coolest Photos Demi Lovato, The Weeknd, Ariana Grande and more lit up the stage on Thursday night By Kate Hogan Kate Hogan Kate Hogan is Director of Digital Specials and Features at PEOPLE, as well as the editor of Stories to Make You Smile. She has been working at PEOPLE since 2008. People Editorial Guidelines Published on May 27, 2021 10:12PM EDT Close 01 of 08 Ariana Grande & The Weeknd The Weeknd and Ariana Grande. Kevin Mazur/Getty Newlywed Grande and collaborator The Weeknd kicked off the show with a sleek performance of their duet, "Save Your Tears." 02 of 08 Dan + Shay Kevin Winter/Getty Smyers and Mooney reminded fans they're "Glad You Exist" during their ethereal performance. 03 of 08 Silk Sonic Kevin Mazur/Getty Bruno Mars and Anderson .Paak brought the sexy with another smooth rendition of their hit "Leave the Door Open." 04 of 08 H.E.R. Kevin Winter/Getty The Grammy- and Oscar-winner kicked off the tribute to Icon Award winner Elton John with his piano-heavy "Bennie and the Jets." 05 of 08 Brandi Carlile Kevin Winter/Getty Carlile hit the stage next with a country-esque rendition of "Don't Let the Sun Go Down on Me." 06 of 08 Demi Lovato Demi Lovato. Kevin Winter/Getty Lovato wrapped up the tribute with John's "I'm Still Standing." 07 of 08 Doja Cat Kevin Winter/Getty The pop starlet went sky-high after performing a medley of her hits from an alien-infested cornfield. 08 of 08 Usher Kevin Mazur/Getty The night's host (and dad-to-be!) brought it back to the early aughts with a mix of his biggest singles that finished with "Yeah!" — and a cameo from Lil Jon.