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Mariah Carey

Timberlake, Underwood, Carey to play iHeartRadio festival

Justin Timberlake, Carrie Underwood, Shawn Mendes, Mariah Carey and Imagine Dragons are among the acts that will play the iHeartRadio Music Festival in Las Vegas this summer.

The festival announced the performers on Tuesday. Jack White, Jason Aldean, Sam Smith and Rae Sremmurd are among the other big-name performers. The two-day festival will be held at the T-Mobile Arena on Sept. 21 and 22.

Ryan Seacrest will host the festival, which will also be broadcast live on iHeartRadio stations and in a televised special on the CW Network on Oct. 7 and 8.

Luke Bryan, Panic! At the Disco, Lynard Skynyrd and Kelly Clarkson will also perform. Tickets go on sale to the...