U2 Philadelphia July 12, 2010

n November 1991, U2 released Achtung Baby. Sonically, the album incorporated alternative rock, dance, and industrial influences of the time and the band referred to the album as the sound of "four men chopping down the Joshua Tree". Thematically, it was a more inward-looking and personal record; it was darker, yet at times more flippant, than the band's previous work. Commercially and critically, it has been one of the band's most successful albums and was a crucial part of the band's early 1990s reinvention. Like The Joshua Tree, it is cited by Rolling Stone as one of rock's greatest.

Catch U2 live on July 12, 2010 at the Lincoln Financial Field in Philadelphia, PA.