Miley Cyrus, Ryan Seacrest and Keith Urban announced the full lineup for the 2013 iHeartRadio Music Festival Monday on Good Morning America.

They revealed the list of the music industry's top acts that will perform at the third annual festival. Justin Timberlake, Katy Perry, Bruno Mars will headline and the two-day concrert will also offer a special collaboration performance featuring American Idol runner-up Adam Lambert with rock icon group Queen. The music festival -- now in its third year -- will be held in Las Vegas at the MGM Grand Arena on Sept. 20 and 21.

Cyrus announced that she will headline the 2013 iHeartRadio Music Festival's first Fan Village, which will be set in the parking lot across the arena. The Fan Village will offer daytime concerts. She noted Avril Lavigne and Jason Derulo as two of several other artists that wil play ahead of the main stage performances. The Fan Village performances are available for free by main stage ticketholders. Those who do not have MGM Grand main stage tickets will be able to purchase an affordable ticket for the smaller concert held in the parking lot.

Timberlake will perform at the 2013 iHeartRadio Music Festival after he wraps up his Legends of The Summer tour at stadiums around the country with Jay-Z. Timberlake, 32, and Jay-Z, 43, will play twelve stadiums across the U.S. They will perform sets together and their own previous hits separately at several iconic sites, including Yankee Stadium, Fenway and the Rose Bowl. The tour will kick off July 17 in Toronto and wrap up Aug. 16 in Miami.

Here is the full lineup for the 2013 iHeartRadio Music Festival:

Justin Timberlake
Katy Perry
Elton John
Muse
Tiësto
Chris Brown
Keith Urban
J. Cole
fun.
Bruno Mars
Phoenix
Zedd
Maroon 5
Miguel
Tim McGraw
Ke$ha
Thirty Seconds to Mars
Benny Benassi
Special live appearance by Queen and Adam Lambert
Other special surprise guests

iHeartRadio Music Festival Village lineup:

Miley Cyrus
Avril Lavigne
AWOLNATION
Pete Tong
Twenty One Pilots
Jason Derulo

Watch Miley Cyrus, Keith Urban and Ryan Seacrest announce the lineup on Good Morning America below