Grimsby Fan - you are right on - probably too many great artists that went down that same road which is way wrong.  Talent, with a touch of Cinderella, until, as commentator Paul Harvey used to say, you hear "...and the rest of the story..."  That's what I like to do on my radio show - the "behind the scenes" on the artists and their songs.  I hear from my listeners, that the music I play is good, BUT the trivial background stories I have to tell are very interesting.  Unfortunately, the behind-the-scenes stories are, more often than not, downers.  One that comes to mind: I used to think that Gordon Lightfoot was one of these devil-may-care. sprite, "squeaky clean" swashbucklers (iconic comes to mind) until I heard the story about his short (thank god) time with Cathy Smith aka Sundown-type character who almost killed him and eventually gave a needle to Jim Belushi with an overdose.  We all have stories that would "curl your toes."  I've also heard the down-side of telling those stories is, like me, you get kind of let down when the icons take a tumble.