U2 are an Irish rock band from Dublin, Ireland that formed in 1976 and have released 13 studio albums. They've sold 170 million records worldwide which makes them one of the best selling artists of all time. They've also won 22 Grammy awards which is more than any other band and were inducted into the Rock and Roll Hall of Fame in 2005.
I actually saw U2 back in 1998 on the PopMart Tour and they had a 150-foot-long LED video screen which was the world's largest at the time. This show marked the 30th anniversary of "The Joshua Tree" album and they performed the entire album in its entirety. It was great hearing songs like "Where the Streets Have No Name", "I Still Haven't Found What I'm Looking For", "With or Without You", and "Bullet the Blue Sky" from the album and also classics like "Sunday Bloody Sunday", "New Years Day", and "One". Bono still sounds great and The Edge is still the master of guitar effects.