Why Paul McCartney Probably Won't Tour With Ringo Starr

"Leave well enough alone," he said.

McCartney, 74, added that his apprehension doesn't necessarily have to do with fans’ perceiving such an event as a Beatles reunion.

"I don't think either of us have ever thought, ‘Why do it, or why not,’" he said. "It's just that our roads are parallel, with intersections and diversions. He's a great drummer, man. He has a feel that nobody else has. As to going out on the road, it might be complicated."

"There's a few things," he says, though admitting he’s unsure whether the material is worthwhile.

As for whether he thinks West is a genius, Sir Paul says with a laugh, "I don't throw that word around. I think he's a great artist."

"It's very difficult," he explained. "You can't top John. And John couldn't top Paul."