Irish rock band U2 went on their lengthy "Zoo TV" world tour in support of Acthung Baby, their seventh album released in 1991. By that point in their career, they were already massive, an important and well-loved band who took on social issues with reverb-soaked guitars. The tour was a huge success, unsurprisingly. It was the highest grossing tour in North America in 1992. They went everywhere, though. For over 150 shows, the band brought their anthemic rock to every corner of the globe. This original U2 shirt, nicely worn in and faded with ink marks, is from the band's 1992-1993 "Zoo TV" tour in support of Achtung Baby.