So, what do a legendary British progressive rock band do for a second act when they're recording their first album after the loss of one of their most important members? They turn to rap, obviously -- at least, that's what producer Bob Ezrin suggested to Pink Floyd when they were recording 'A Momentary Lapse of Reason.'

"I brought some in to David Gilmour's thing going, 'Boy, I think this stuff with a rock beat would be awesome,'" he recalls.

Fortunately, Gilmour was having none of the credibility-destroying idea. "He said, 'Oh my God, that would be terrible,'" Ezrin says, laughing. "He couldn't believe it. He hated the idea."