Alzheimer's is a horrible thing. Some people are naive about it. They think, 'Oh it's just your memory,' but my mother was in terrible pain. Your body closes down. She didn't know if she'd eaten or if she wanted to eat. She couldn't remember how to walk. Towards the end, she didn't know us. It came gradually, then it got worse.

When I was young, I used to wear a lot of wigs, and I was running on stage at a gig and tripped over and it fell off. It was in the 1970s, and Swansea were doing really well in the league, and most of the team were there. I almost died, but I picked it up, put it back on my head and carried on.

I remember when the Atkins diet arrived; I lost 16 lb in the first month, but when I stopped, it all went back on again.

I am going to keep on singing. I have no intention of retiring. Actually, I always wonder whether people know my songs in the different countries I visit. I feel nervous over whether they will sing along with me or not.