"This was a difficult choice. I did want something that was a disco album and could have gone for The Bee Gees’ Saturday Night Fever - you don’t get much better than the songs on that particular album. But then I thought about Michael Jackson and what he did and how he changed things. Off The Wall is Quincy [Jones] at the height of his powers producing Michael Jackson as he is coming of age. Michael had the most amazing voice and a sense of rhythm that no-one had ever heard before. It’s really something. I listened to it about two or three months ago for the first time in quite a while and it is flawless. Off The Wall was the sound of [New York super-club] Studio 54. I was too young to go to Studio 54 when it first opened but I did go later when they reopened it briefly at the beginning of the eighties. I stood in the same room just imagining what it would have been like - it would have been a lot more fun in 1977. So, that album, which to me is a more interesting album than Thriller (although again another really great album), captured the spirit of a generation and moved dance music somewhere. This discussion could go on for hours if we had time, about what happened with disco and funk, bands like Chic and Sister Sledge who I’m obviously a huge fan of, but, for me, Off The Wall was the album that defined that period."

"What can I say about this one? Well, I just love it. Of course that became a mantra for the civil rights movement. ‘Respect’ is just basic to everyone: everybody wants it. Even small children want respect. They don’t know that they want it, but they want respect. They let you know when they need something, and when they do, it’s a little respect. Everybody wants and needs respect. It’s basic to mankind. Perhaps what people could not say, the record said it for them. “I remember recording it with the Memphis Horns down in Muscle Shoals. Great session, great players. I had no idea it would become the hit it became. No idea. My sister Caroline and I got together for the backup vocals. And during that time, in Detroit, there was a cliché called ‘sock it to me,’ and I decided to put that in the background: ‘sock it to me, sock it to me, sock it to me.’ There was nothing sexual about that. It’s like if you gave me a high five. “I don’t think I was a catalyst for the women’s movement. As far as I know, that was Gloria Steinem’s role. But if I were, so much the better. Women did, and still do, need equal rights. We’re doing the same job, we expect the same pay, and the same respect. “I never get tired of singing it. I really love it. And I find new ways to just keep it fresh for me, without changing exactly what it is people heard on the record."