Maybe not quite biographies in a strict sense since they're about more than 1 person, but
what was that Guns n Roses book called ( believe it was called "watch you bleed: the saga of guns n roses")
and
Boys Will Be Boys, about the 80s Cowboys that were such superstars that they were let run amok by management
(my favorite quote from Nate Newton, regarding them getting busted for having a house they partied like mad and banged hookers in: "we werent all out over the town. yeah we ran some whores up in here. we were just trying to be responsible.")
both very entertaining reads