Adam Lambert: iHeartRadio Music Festival with Queen!

Adam Lambert dons a low cut shirt while attending the 2013 iHeartRadio Music Festival at the MGM Grand Garden Arena on Friday (September 20) in Las Vegas, Nevada.

Later in the night, the 31-year-old singer performed onstage with legendary band Queen and Fun.

PHOTOS: Check out the latest pics of Adam Lambert

For the set, Adam performed Queen‘s hits songs, such as “Who Wants to Live Forever,” “Fat Bottom Girls,” “Bohemian Rhapsody,” “Crazy Little Thing Called Love,” and “Another One Bites the Dust.” Watch the video below!

“I can’t wait for #IHeartRadio tonight to sing with @QueenWillRock! Livestreams at: http://iheartradio.com/vegas , starting at 7pm PT! We r on @12!” Adam tweeted earlier in the day.

30+ pictures inside of Adam Lambert performing at the iHeartRadio Music Festival…