The big issue with rock stars becoming actors is that sometimes it's not believable, and vice versa with actors becoming rock stars. Sometimes just doesn't fit.

I will never be a career actor, I don't think. I don't feel that I have the skill set to jump into it that way, although I wouldn't mind giving it a try.

I've often thought that it would be great to do some acting because nobody would think that I would be able to do it and it scares the living hell out of me.

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.

The big issue with rock stars becoming actors is that sometimes it's not believable, and vice versa with actors becoming rock stars. Sometimes just doesn't fit.

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.

The longer you've been acting, normally, the better you are at it. As a musician, it doesn't work like that.