The 2012 iHeartRadio Festival Explodes in Las Vegas
Prince (yes, PRINCE!), Rihanna, Taylor Swift, P!nk, Usher, No Doubt, Green Day + more! All the big names invaded Sin City for iHeartRadio's annual music fest
Prince performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Denise Truscello/WireImage
Rihanna
Rihanna performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Green Day
Billie Joe Armstrong of Green Day smashes his guitar as he performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
No Doubt
No Doubt perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Isaac Brekken/Getty Images for Clear Channel
Pink
Pink performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Bryan Steffy/Getty Images for Clear Channel
Taylor Swift
Taylor Swift performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Lil Wayne
Lil' Wayne performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Pitbull
Pitbull performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Deadmau5
Deadmau5 performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Usher
Usher performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Pink and Gwen
Gwen Stefani and Pink perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Lil Wayne and Flavor Flav
Lil Wayne and Flavor Flav backstage during the 2012 iHeartRadio Music Festival at MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
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Brad Paisley
Brad Paisley performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Linkin Park
Linkin Park perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Pitbull and Ne-Yo
Pitbull and Ne-Yo perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Aerosmith
Steven Tyler of Aerosmith performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Michael Kovac/Getty Images for Clear Channel
No Doubt
No Doubt perform onstage during the 2012 iHeartRadio Music Festival at MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Psy
Psy performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Isaac Brekken/Getty Images for Clear Channel
Prince and Mary J Blige
Prince and Mary J. Blige perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)
Christopher Polk/Getty Images for Clear Channel
Taylor Swift
Taylor Swift performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Rihanna
Rihanna performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Isaac Brekken/Getty Images
Aerosmith
Steven Tyler of Aerosmith performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Green Day
Billie Joe Armstrong of Green Day performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Michael Kovac/Getty Images for Clear Channel
Ne-Yo
Ne-Yo performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Isaac Brekken/Getty Images for Clear Channel
Usher
Usher performs onstage during the 2012 iHeartRadio Music Festival at MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Kathy Griffin, Psy and Miley
Kathy Griffin, Psy and Miley Cyrus backstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
Green Day
Tre Cool of Green Day performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Christopher Polk/Getty Images for Clear Channel
No Doubt
Gwen Stefani of No Doubt performs onstage during the 2012 iHeartRadio Music Festival at MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Pitbull and Enrique
Pitbull and Enrique Iglesias perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Lil Wayne
Lil Wayne performs onstage during the 2012 iHeartRadio Music Festival at MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Deadmau5 and Gerard Way
Gerard Way of My Chemical Romance performs with Deadmau5 onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Isaac Brekken/Getty Images for Clear Channel
Deadmau5
Deadmau5 performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Kevin Mazur/WireImage
Taylor Swift
Taylor Swift performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Isaac Brekken/Getty Images for Clear Channel
Linkin Park
Linkin Park perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22, 2012 in Las Vegas, Nevada.
Bryan Steffy/Getty Images for Clear Channel
Usher
Usher performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada.
