Singer Stevie Wonder performs during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Singer, songwriter Stevie Wonder dances with his back-up singers during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Linkin Park's lead singer Chester Bennington, left performs with JayZ during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Shown on a video screen behind the band, lead singer Dave Matthews of the Dave Matthews Band performs during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Lead singer Dave Matthews of the Dave Matthews Band performs during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Seen from the top of the City Hall building, hundreds of thousands of spectators fill the Benjamin Franklin Parkway to watch the Live 8 concert in front of the Philadelphia Art Museum in Philadelphia, Saturday, July 2, 2005.
Philadelphia native Will Smith, center, performs with DJ Jazzy Jeff during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Jon Bon Jovi performs during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Destiny's Child performs during the Live 8 concert in Philadelphia, Saturday, July 2, 2005. The Live 8 concerts are part of a campaign to get the world's richest nations to cancel debt, increase aid to developing countries and promote fair trade.
Members of the band Black Eyed Peas perform during the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
Ricky Wison, lead singer for the group Kaiser Chiefs, leaps up on stage during the band's performance at the beginning of the Live 8 concert in Philadelphia, Saturday, July 2, 2005.
A spectator waves an American flag in front of the Philadelphia Museum of Art before the start of the Live 8 concert in Philadelphia, Saturday, July 2, 2005.