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.

I do have a spongelike ear or mentality or whatever you call it, but it's probably a bit subconscious.

I'm not a great practiser at all. We were never great practisers. The Beatles would come together for about a day before we had a tour, to make sure the amp worked.

If this ever changing world in which we live in makes you give in and cry, say live and let die.

When I write, there are times -- not always -- when I hear John (Lennon) in my head, ... I'll think, OK, what would we have done here?, and I can hear him gripe or approve.

It's a lifelong gift, something you can call on at any time.

I just start singing some words with a tune. I don't ever write a song thinking, Now I'll write a song about... .