During the 80-minute discussion, Waters also recalled Floyd's 1967 U.S. debut performance at San Francisco's Winterland, saying Janis Joplin pilfered a pint of Southern Comfort he had just purchased just before the show.

Earlier this week, Waters spoke with Rolling Stone about his forthcoming solo album--his first "rock" effort in 20 years. "I finished a demo of it last night," he revealed.

"It's 55 minutes long. It's songs and theater as well. I don't want to give too much away, but it's couched as a radio play. It has characters who speak to each other, and it's a quest. It's about an old man and a young child trying to figure out why they are killing the children." The veteran rocker went on to say he isn't sure whether he'll support the disc with a tour. more on this story