Facebook are an amazing team, a brilliant team. It's a technology that brings people together.

I used to love Kurt Cobain, when he was telling people we're a pop band. People would laugh, they thought of it as good old ironic Kurt. But he wasn't being ironic.

The strangest thing has happened. I really missed my dog. That's never happened to me before. You know, on a long tour you do hear people saying they miss their pets. I never have. But last night I started really missing my dog. It's very odd, 'cause I don't have a dog.

U2's best work has always been when we didn't know what we're doing.

I'm as skeptical as anyone would be about celebrities and causes - and I will dare to say to you that I don't think of myself as a celebrity per se.

I'm home a lot. Because I live in Ireland, we can live under the celebrity radar. I might go missing for a whole year.

I used to - my earliest memory of waking up with a melody in my head was, you know, 8, 9, 10. I've always heard kind of melodies in my head.