The iHeartRadio Music Awards went all out on Thursday night. Not only was the award show filled with show-stopping performances, including Alicia Keys's precious performance with her son, but there were plenty of moments that you didn't catch on TV. The Backstreet Boys took us back to the '90s with their swoon-worthy appearance, and Taylor Swift caught her with a handful of stars during the show. See some of the best moments of the night ahead!
Pictured: Kacey Musgraves
Pictured: Backstreet Boys
Pictured: Maren Morris and Taylor Swift
Pictured: Halsey
Pictured: Alicia Keys and Her Son Egypt
Pictured: 5 Seconds of Summer
Pictured: Bebe Rexha
Pictured: John Legend
Pictured: Alicia Keys
Pictured: Kacey Musgraves
Pictured: Ella Mai
Pictured: Michael Caussin and Jana Kramer
Pictured: Halsey and Yungblud
Pictured: Alicia Keys and Her Son Egypt
Pictured: Alicia Keys and Her Son Egypt
Pictured: Chris Pratt
Pictured: Zedd and Maren Morris
Pictured: 5 Seconds of Summer
Pictured: Kacey Musgraves
Pictured: Miguel and Nazanin Mandi
Pictured: Steven Tyler
Pictured: Kacey Musgraves
Pictured: Taylor Swift
Pictured: Backstreet Boys
Pictured: Marshmello
Pictured: Jamie Foxx and Alicia Keys
Pictured: Backstreet Boys
Pictured: 5 Seconds of Summer
Pictured: T-Pain
Pictured: Kacey Musgraves and Jamie Foxx
Pictured: Jamie Foxx and John Legend
Pictured: Alicia Keys and Her Son Egypt
Pictured: Kat Graham and Taylor Swift
Pictured: Pharrell Williams
Pictured: Garth Brooks
Pictured: T-Pain
Pictured: Halsey and Elle Fanning
Pictured: Garth Brooks and Chris Pratt
Pictured: Steven Tyler and Aimee Preston
Pictured: Kacey Musgraves
Pictured: T-Pain
Pictured: Jamie Foxx and Alicia Keys
Pictured: Alicia Keys
Pictured: Zedd and Katy Perry
Pictured: Bebe Rexha
Pictured: Heidi Klum
Pictured: Halsey
Pictured: Taylor Swift
Pictured: Heidi Klum, Katy Perry, and Zedd
Pictured: Garth Brooks
Pictured: John Legend
Pictured: Garth Brooks and Trisha Yearwood
Pictured: Elle Fanning
Pictured: Bebe Rexha
Pictured: Halsey and Yungblud
Pictured: Taylor Swift
Pictured: Jamie Foxx
Pictured: Betty Who and Katie Stevens
Pictured: Halsey
Pictured: Ella Mai
Pictured: John Legend
Pictured: Halsey
Pictured: Halsey
Pictured: Trisha Yearwood and Garth Brooks
Pictured: Kat Graham and Taylor Swift
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