David Gilmour and Roger Waters helped bring many of Pink Floyd's music to life, but Gilmour felt his partner wasn't always the healthiest collaborator.

Any album has the potential to stand as a defining statement for its artist, but Keith Richards felt that not every LP had the kind of depth he hoped for.

John Paul Jones may have been the beating heart of some of Led Zeppelin's greatest tunes, but that didn't mean he had rose-coloured glasses for everything.