One of my great memories of John is from when we were having some argument. I was disagreeing and we were calling each other names. We let it settle for a second and then he lowered his glasses and he said: "It's only me." And then he put his glasses back on again. To me, that was John. Those were the moments when I actually saw him without the facade, the armor, which I loved as well, like anyone else. It was a beautiful suit of armor. But it was wonderful when he let the visor down and you'd just see the John Lennon that he was frightened to reveal to the world.

At the end of the Beatles, I really was done in for the first time in my life. Until then, I really was a kind of cocky sod.

To keep the record straight, it wasn't always John and Yoko. We've all accused one another of various business things; we tend to be pretty paranoid by now, as you can imagine. There's a lot of money involved.

The Stones also still have a huge following. Mick Jagger leaps around like a crazy dude. And Keith Richards, Ronnie Wood and Charlie Watts are playing great too.

And when the night is cloudy There is still a light that shines on me Shine on until tomorrow, let it Be...

I lost my voice. I'd never had to cancel a show before and I had to walk around with a pad and a pen, writing things down.

The most important ingredient to making a song work is the magic. You've got a melody, you've got words, but on the more successful songs, there's a sort of magic glow that just happens and you can feel it happening. It just makes the songs sort of roll out.