If you repeat what you did in the last tour, the likelihood is it's not gonna be successful twice. People are nostalgic about a particular record, because it's about the time when they were listening to that record. But if you do it again, they're like, I'm not that guy anymore.

When you are on tour in the UK it takes a few hours to get anywhere. A lot of the time you can have a beer, close your eyes for two minutes, and then you are there. In the U.S. it is much more like a road trip as all the cities are so spread apart.

The culture's changed massively. The kids are different, with the phones and stuff. Even if you like a song, you don't really know who the artists are, it's a lot more faceless, it's a lot less tribal. When we were growing up it was much more tribal - it was rock, it was grunge. Now people like songs, [but] they don't necessarily know the song's origins. I don't know how you would feel angry at the world, or distressed, because most people are constantly distracted or consumed.

Big shows are more like events and small shows are more like traditional gigs.

Every song I've written, it's about what I've gone through, good or bad. It kind of comes out of me, and I'm grateful for that. I've got friends who are back home who've got no way to express that, and they're kind of in a different position in life. It's alarming to me that I've written something on my bedroom floor when I was 19 or something, and then there's 50,000 people that know the words, and they've got a similar feeling. If you thought about it too much, your head would blow up.

It's better for the listener to interpret their own meanings to the music.

Avril Lavigne sold a massive amount of albums and she has to top that with her next release. We have four great albums behind us, and it's not going to be as hard to live up to that.