This year's iHeartRadio Music Festival made its epic return to Las Vegas as many of music's biggest stars took over the stage for some unforgettable live performances in front of a room full of fans.

Dua Lipa, Cheap Trick, Walker Hayes, FINNEAS, Darius Rucker, Weezer, J. Cole and Nelly with special guests Florida Georgia Line all got the party started on Friday, September 17 at T-Mobile Arena. Lipa kicked off the evening with a dance-inducing set, followed by a nostalgic set from Cheap Trick, making way for everyone to get "Fancy Like" with Walker Hayes. Then, FINNEAS laid down a stunning performance, Darius Rucker brought back Hootie & the Blowfish, Weezer rocked the house, and J. Cole brought out a surprise guest to join him. And closing out Night One of this year's iHeartRadio Music Festival was Nelly with special guests Florida Georgia Line.

For Night Two on Saturday, September 18 Billie Eilish, Sam Hunt, The Kid LAROI, Coldplay, Lil Baby, Journey and Khalid with special guest Tate McRae hit the T-Mobile stage. Billie started the night with an unforgettable set that included a performance of her latest single "Happier Than Ever." Next up was Sam Hunt who brought the iHeart audience to his very own house party with his jam-packed country set. Not to be outdone, The Kid LAROI continued the party, performing several of his chart-topping hits. Coldplay then delivered an unforgettable performance of both their classic and new hits. Lil Baby was up next with an energy-filled performance of his club bangers. The rapper was followed by Khalid, who performed several of his fan-favorite hits before bringing out his special guest Tate McRae. Journey closed out the night, concluding Night Two of this year's iHeartRadio Music Festival with a rockin' set.

If you missed any of the action this weekend, you can relive the 2021 iHeartRadio Music Festival by tuning in to The CW Network on Saturday, October 2nd and Sunday, October 3rd from 8-10 pm ET/PT for a two-night television special.

Keep scrolling below for all of the highlights from the 2021 iHeartRadio Music Festival.

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