Fun.'s Nate Ruess to Join Adam Lambert for Queen Performance at iHeartRadio Fest

Chris Godley

The band members are certainly familiar with playing in Los Angeles, but Tuesday marked the first time that Ruess referred to the city as his "hometown."

UPDATED: The "We Are Young" singer was spotted rehearsing "Somebody to Love" and "Fat Bottomed Girls" with the legendary band this week.

Queen will team up with another powerhouse singer at the iHeartRadio Music Festival this weekend. Nate Ruess of fun. is set to take the stage with the legendary British rock group at the MGM Grand Garden Arena in Las Vegas, a source confirms to Billboard.

Ruess and the band -- led by Brian May and Roger Taylor, along with guest frontman Adam Lambert -- were spotted rehearsing "Somebody to Love" and "Fat Bottomed Girls" on Tuesday (Sept. 17). It's unclear how many songs they'll perform together, but the set is slotted for 35 minutes -- the longest of the festival, Paul McCartney, Elton John, Justin Timberlake and Katy Perry were each allotted 30 mins.

Queen and Lambert are on the bill for Friday night, as is Ruess' Fun., whose hits include "We Are Young," "Some Nights" and "Carry On." Queen is scheduled to take the stage at 11:59 p.m.

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Friday night will also see performances from Katy Perry, Elton John, Keith Urban, J. Cole, Muse, Tiesto, Chris Brown and Benny Benassi. Saturday artists include Paul McCartney, Justin Timberlake, Drake, Miley Cyrus, Tim McGraw and Bruno Mars, among others.

The two-day festival will be held this Friday and Saturday at the MGM Grand Arena, with a first-time Fan Village set to run during the daytime in a 15-acre parking lot adjacent to the arena. Dubbed the iHeartRadio Music Festival Village, the space will feature performances from Miley Cyrus, Avril Lavigne, AWOLNATION, Pete Tong, Twenty One Pilots and Jason Derulo.

The Queen threesome isn't the only guest appearance expected this coming weekend. Check back with and for full coverage.

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