"It's not easy for me to stand up in front of 50.000 people. It's not my natural habitat. I think it's probably easy for Bono. But I can do it. And I will do it if I know the songs are great."
- Adam Clayton, 2009
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.