PHOTOS: Backstage at the 2012 iHeartRadio Music Festival

It's virtually impossible for celebs NOT to run into eachother at the star-studded iHeartRadio Music Festival, and when they do it always makes for a special moment! Check out some of the highlights overheard backstage at the MGM Grand Las Vegas.

Enrique Iglesias to Elvis Duran: "My girlfriend is gonna kill me."
Elvis Duran: "You tell Martina Navratilova to calm down!"

Billie Joe Armstrong to No Doubt: "Best band here this weekend!"

Rihanna to Elvis Duran: "Tell Pitbull I love him!" 

Kathy Griffin told Tre Cool of Green Day she loved his set and that No Doubt is the best band here (oopsie!)

Flavor Flav to Miley Cyrus: "Gwen Stefani!!!" (Miley just went with it, FYI, but after someone made Flav aware of his mistake, he went back and apologized).

Spotted: Miley Cyrus giving her number to Richie Sambora...

Click here for full coverage of the 2012 iHeartRadio Music Festival

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