Backstage at the iHeartRadio Music Festival, Brian May and Roger Taylor told Kennedy that they first heard Adam Lambert's voice a long time ago. “That’s a voice of a billion." stated Brian May.  “Adam can do things which I’ve never heard anyone do in my life.”

Adam Lambert wasn't the only collaboration that happened on the iHeartRadio Music Festival stage. Nate Ruess and Jack Antonoff of fun. joined Queen on-stage and performed the classic hits "Somebody to Love" and "Fat Bottomed Girls."

WATCH: fun. joins Queen + Adam Lambert on stage at iHeartRadio Music Festival

Can't get enough Queen? Check out the musical "We Will Rock You" by Queen and Ben Elton. The musical has been happening for 11 years in Britain and now the fellas are bringing the show to the states. When Kennedy asked if we will see "We Will Rock You" on Broadway, Brian May lead us to think we just might! Check out the backstage interview below.