iHeartRadio Music Festival lineup announced

Taylor Swift attends the 56th Grammy Awards at Staples Center on Jan. 26, 2014, in Los Angeles.

Jason Merritt/Getty Images

This year's iHeartRadio Music Festival is packed with plenty of star power.

Among the performers are One Direction, Motley Crue, Taylor Swift, Coldplay, Usher, Ariana Grande, Nicki Minaj, Zac Brown Band, Ed Sheeran, Paramore, Iggy Azalea, Train, Lorde and Calvin Harris.

Eric Church, Bastille and Steve Aoki are also slated to perform Sept. 19 and 20 at the MGM Grand Hotel & Casino in Las Vegas.

On Sept. 20, during the iHeartRadio Music Village, Neon Trees, Kacey Musgraves, Childish Gambino, Magic!, The Pretty Reckless and more will take the stage.

"Year after year the iHeartRadio Music Festival continues to deliver an unprecedented music experience for millions of fans nationwide. I couldn't be more excited to be part of it," said Ryan Seacrest, host of the iHeartRadio Music Festival. "The adrenaline-pumping performances by pop stars and legendary artists alike, the never-seen-before collaborations, the energy of the fans and the artists, this is truly an event like no other."

Tickets go on sale Saturday.