"They exhaust you. You're wrestling four guys coming in rotation and then all together at the same time... it's unbelievable how they work."
- Jimmy Iovine on U2
did you know
During the ZooTV Tour U2 introduced a new stage concept called the B-stage. It allows for more intimate and stripped-down performances of songs, later used by Aerosmith, Bon Jovi and Coldplay amongst others.