"We supported The Stranglers in the early days. I tried to persuade JJ to wear one of our badges: 'U2 can happen to anyone'. He said 'fuck off', and rightly so. But I took it badly and we robbed their dressing room - totally cleaned it out."
U2 hold the record for the most powerful live sound system of all time. It used over a million watts - capable of killing someone if turned up to full.