I suppose I was much more serious-minded in the '70s and '80s.

My own personal theory is that all popular music, in whatever form it is, to me, it all comes from Africa. Whether it's filtered through America or whatever - African-American. But I still think there's something in that roots music that's very, very African, and I think that's what unites people.

I only put an album out every two or three years.

Nothing wrong with pop.

I don't really wanna talk about politics, I'm not clever enough.

Worldwide, most people dress more casually these days, don't they? They have done for the last 20 or 30 years, I suppose. So, every place that I go to, the majority of people really wear jeans, trainers, T-shirt - everybody seems to dress more for comfort. Whereas, even in my lifetime, even up to the early-'70s, there was still that thing of dressing up.

I saw an interview with Keith Richards. He said, 'How else could a kid in Dartford suddenly connect with and understand what Muddy Waters is singing?' There's a cultural difference, but there's just something in that music that subconsciously or internally you just understand; it just makes sense.