I'm not a big QJ fan, but he did some interesting things over the years. Check out "In The Heat of the Night" soundtrack, with Ray Charles.
But he's wrong about the Beatles. Even drunk, I would never say such a thing. That stuff is hard to play well, even though it's deceptively simple. It's a lot more complex than it looks. He was right to apologize, but I think it was for the Jackson thing.