I'm a grandfather now.

Some audiences can shake and bang their heads on the stage to riffs all night long, but subtlety is an art that must be mastered if you're going to be remembered.

I do spend a lot more time away from the U.K., it's important to me that I still feel the beat of the people that have been close to me for a long, long time. It's also important that I have really strong and beautiful relationships which I wish to preserve. That enables me - or challenges me, ultimately - to get a Texas driving license!

The events between 1968 and 1980 were the kind of cornerstone for everything I've been able to do, they gave me the springboard.

Led Zeppelin has been there through three generations of teenage angst. And there's a generation of kids now who won't know it, post-Linkin Park.

A daily blog would just about finish me off completely.

I've still got a twinkle in me.