Artists are a very temperamental bunch. It's part of their vocation to forever be chanelling the deepest extremes of every emotion - be it passion, love, and often, anger.
This isn't always confined to song. Hell, they're people too. Sometimes people just don't like each other very much.
From long-running rivalries to cheap digs and beyond, here are 12 of the harshest, most eye-watering musician vs musican personal attacks of all time - from Robert Smith and David Bowie to Mark E Everrett and Noel Gallagher.