Once I get onstage the tension explodes and I'm fine. I'm in another world - in a trance almost, doing what I love best, expressing myself through guitar.

The key to Zeppelin's longevity has been change.

I always felt if we were going in to do an album, there should already be a lot of structure already made up so we could get on with that and see what else happened.

You can't just find yourself doing something and not happy doing it.

Many people in the neighborhood liked hip-hop and house music, and I couldn't play that. You can't perform that on guitar or drums, which was what I was playing, at the time. But, I got so much from mariachi bands that were constantly playing in the neighborhood.

There's so much that can be done on the guitar. And that's what is so good about the guitar - everyone can really enjoy themselves on it and have a good time, which is what it's all about.

So many people are frightened to take a chance in life and there's so many chances you have to take.