Every few months, a big rock star biography or memoir comes out. The pre-release buzz is always major, promising, finally, the truth about that musical icon we all thought we knew. Rarely does that truth happen, though. Factor in ghostwriters, extremely careful publishing house legal departments, and musicians gunning for either continued relevance or to maintain a carefully crafted public image, and more often than not those bios end up as disappointing cop-outs. (Except if they're written by a member of Motley Crüe or Guns N' Roses; those things are horrifying and awesome.) Ergo, if you're a big music nerd, you can just go ahead and skip these high-profile rock star hatchet jobs, many of which were written (or "written") by the stars themselves.