Lineup announced for the 2013 iHeartRadio festival

LAS VEGAS, NV - MAY 11: In this handout image provided by The Rolling Stones, Katy Perry performs onstage with Mick Jagger during The Rolling Stones "Beast of Burden" tour on May 11, 2013 in Las Vegas, Nevada. (Photo by Ron Koch/The Rolling Stones via Getty Images)

Justin Timberlake, Katy Perry, Maroon 5 and Elton John are among the headliners of the 2013 iHeartRadio music festival in Las Vegas.

Other performers at this year's festival, set for Sept. 20-21, include Chris Brown, Bruno Mars, Maroon 5, Keith Urban, Miguel, J. Cole and fun.

Ryan Seacrest will host the third annual event at the MGM Grand Arena, which will also feature sets by Tiesto, Phoenix, Muse, Zedd, Tim McGraw, Ke$ha, Thirty Seconds to Mars, Benny Benassi and Queen with Adam Lambert. Tickets go on sale this Saturday.

Also planned is the iHeartRadio Music Festival Village at a parking lot nearby the arena, with performances by Miley Cyrus, Avril Lavigne, Jason Derulo, Cher Lloyd and others.

The festival will be broadcast on Clear Channel radio stations. It will also air as part of a TV special on the CW network on Sept. 30-Oct. 1.

At last year's iHeartRadio festival, Green Day singer Billie Joe Armstrong made headlines for hispublic meltdown during which he complained that the group's time had been cut short.