The iHeartRadio Music Festival 2013 will be another star-studded event, with Justin Timberlake, Katy Perry and Elton John among the headlining artists. The event is set for September in Las Vegas.

Perry, Timberlake and John will be joined by J. Cole, Phoenix, Muse, Ke$ha, Tim McGraw, Miguel, Chris Brown and Bruno Mars. Adam Lambert will also be performing with Queen.

According to Billboard, Ryan Seacrest announced the lineup during a press conference with Clear Channel programming chief Tom Poleman this morning. Timberlake’s performance will come after he finishes his stadium tour with Jay-Z and just before The 20/20 Experience Part 2 comes out on Sept. 30.

Last year’s iHeartRadio festival featured highlights that included No Doubt singing with P!nk, Usher performing “Euphoria” with Swedish House Mafia and a surprise appearance from Prince during Mary J. Blige’s set. However, it was best remembered for Green Day frontman Billie Joe Armstrong’s rant about having their set cut short, smashed a guitar and dropped a few f-bombs. Armstrong later went to rehab, just as the band released their three new albums.

The schedule for the 2013 festival wasn’t announced, but it is set for Sept. 20 and 21 at the MGM Grand in Las Vegas. There will be a Fan Village that is free for ticket holders, where Miley Cyrus, Avril Lavigne and others will give special performances.

You can check out the full lineup here. Tickets go on sale on July 20.

image: NBC