Ariana Grande, Billie Eilish, Shawn Mendes are just a few of the artists up for awards.
Hosted by Ryan Seacrest, the event will take place on Sept. 20 and 21 at the T-Mobile Arena in Las Vegas.
Pratt enthused that he's also ready for "the upcoming stadium tour."
ET caught up with Katy Perry, Kacey Musgraves and more celebrities at the 2019 iHeart Music Awards.
The 8-year-old accompanied his mom on the keys!
Find out who won big at this year's star-studded show!
ET is taking a look at the most memorable moments of the 2019 iHeartRadio Music Awards.
Here's a look at all the things fans at home didn't get a chance to see during Thursday's broadcast.
ET caught up with Morris on the red carpet at the iHeartRadio Music Awards in Los Angeles.
The 'I Like It' rapper also thanked her haters for making her work harder.
The country superstar also dished on what her cheat meals consist of.
The artists took the stage at the end of the night, only to be interrupted.
The singer spoke with ET at the 2019 iHeartRadio Music Awards, and didn't seem opposed to the possibility.
Bebe Rexha also opened up about her approach to red carpet fashion at the iHeartRadio Music Awards in Los Angeles.
