2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Drummer 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman Billie Joe Armstrong (R) of Green Day performs onstage with a fan during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman Billie Joe Armstrong (L) of Green Day performs onstage with a fan during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman Billie Joe Armstrong (L) of Green Day performs onstage with a fan during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Green Day performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Isaac Brekken/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Bryan Steffy/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman Billie Joe Armstrong of Green Day performs in the crowd during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman Billie Joe Armstrong of Green Day performs in the crowd during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Bassist Mike Dirnt of Green Day smashes his bass as he performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Isaac Brekken/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman Billie Joe Armstrong (L) of Green Day performs onstage with a fan during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Isaac Brekken/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: Frontman 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. (Photo by Isaac Brekken/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)

2012 iHeartRadio Music Festival - Day 1 - Show

LAS VEGAS, NV - SEPTEMBER 21: 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. (Photo by Michael Kovac/Getty Images for Clear Channel)