Now I know I understand that it was Sgt. Pepper's Band, that put the sixties into song, where have all the heroes gone?

It [my vocal] didn't sound like what I wanted to hear; the vibrato isn't what I liked anymore. So I got myself to an ear, nose and throat guy who does a lot of work with singers, and I was hoping there was a big wart on my vocal cords or something and they could scrape it off and I could have the voice I wanted. But he said, "No, for 71, that's your voice."

Somebody else does the rigor and then I listen. I have an assistant, and my manager, and other people who hunt and find and send it to me, and then I just figure out which ones I can do justice to.

I'd hear a tune in my head and the words would come. And then, very suddenly it just stopped. It seemed too stilted to try and learn how to write a song, to go to round robins and to learn things from other people on how to write a song. So I just stopped and did other things.

It sounds corny, but it's absolutely true: A song chooses me. I don't go looking for a certain kind of lyric. It kind of develops its own little arc and I'll just see what happens.

Peace might sell, but who's buying?

I'm lucky to have met so many people who have been involved in peace and who have been peace prize winners.