2012 iHeartRadio Music Festival
Billie Joe Armstrong of Green Day performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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In the Crowd
Billie Joe Armstrong of Green Day performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Psy
Psy performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Lil Wayne
Lil Wayne performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Swedish House Mafia
Steve Angello, Axwell and Sebastian Ingrosso of Swedish House Mafia perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Bon Jovi and Richie Sambora
Richie Sambora and Jon Bon Jovi perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Jason Aldean
Jason Aldean performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Rihanna
Rihanna performs during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Usher
Usher performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Pistol Annies
Musicians Ashley Monroe, Angaleena Presley and Miranda Lambert of Pistol Annies perform during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Gwen and Pink
Gwen Stefani of No Doubt and Pink perform together during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Gwen Stefani
Gwen Stefani of No Doubt performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21st, 2012 in Las Vegas.
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Gerard Way
Singer Gerard Way of My Chemical Romance performs with Deadmau5 onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Aerosmith
Singer Steven Tyler and guitarist Joe Perry of Aerosmith perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Pink
Pink performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Brad Paisley
Brad Paisley performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Taylor Swift
Taylor Swift performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Taylor Swift
Taylor Swift performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Enrique Iglesias
Enrique Iglesias performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Prince and Mary J. Blige
Prince and singer Mary J. Blige perform onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Deadmau5
Deadmau5 performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Calvin Harris
Calvin Harris performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Linkin Park
Linkin Park performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.
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Pitbull and Ne-Yo
Pitbull and Ne-Yo perform during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 22nd, 2012 in Las Vegas.