Bono’s activism helped him “save [his] own a**”. The U2 frontman has always felt like an “impersonator” but admitted he nearly lost himself in the 1990s so is thankful he eventually set his attention elsewhere and was able to use his fame as a way of helping others through his anti-poverty and AIDS awareness campaigning. He told the Sunday Times magazine: “I’ve always felt like a sort of impersonator when it came to being a rock star, like I couldn’t quite fit the bill. But in the Nineties I might have gotten a little too good at it. I suppose I could have stayed in those plastic pants “I woul…