I don't think anybody could imagine the life that I've been lucky enough to have. It's been an incredible journey.

There's a thin line between interesting music and self-indulgence. We crossed it on the Passengers record.

Then Bono arrived, and he meant to play the guitar, but he couldn't play very well, so he started to sing. He couldn't do that either. But he was such a charismatic character that he was in the band anyway, as soon as he arrived. I was in charge for the first five minutes, but as soon as Bono got there, I was out of a job.

Relevance is a big, big question. It's more about what's your definition of being relevant. In the music world, agism is a big issue. It's about youth and youth culture. There's no other art form that I know that requires you to be a certain age.

I joined a band to hit things.

And if I had to spend 20 years in the band just to play that show, I think it would have been worthwhile.

I don't think anybody could imagine the life that I've been lucky enough to have. It's been an incredible journey.