In Concert (60 images)

Jennifer Lopez performs in concert with her husband, Marc Anthony at the American Airlines Arena in Miami on November 2, 2007. (UPI Photo/Michael Bush)

Sharareh Farnejad, part of the ten-member Arian band, plays guitar at the 23rd International Fajr Music Festival in Tehran, Iran on December 24, 2007. Irish pop singer Chris de Burgh is to play a historic gig in Tehran, marking the first time a Western artist will perform in Iran in nearly 30 years. De Burgh planned to headline several concerts in Iran next summer as part of a collaboration with the Iranian rock group Arian, the band's manager said. (UPI Photo/Mohammad Kheirkhah)

Coolio performs during halftime of the Cleveland Cavaliers-Denver Nuggets game at the Pepsi Center in Denver on November 12, 2007. (UPI Photo/Gary C. Caskey)

Joe Perry of the band Aerosmith performs with his two sons Tony Perry and Adrian Perry (not pictured) and their group Tab the Band at Hard Rock Cafe in Boston, Massachusetts on Feburary 29, 2008. (UPI Photo/Matthew Healey)