This may come as quite a shock to you, but the Prince Of Darkness used to party. A LOT.

How much?  Well, according to a new tell all movie "God Bless Ozzy Osbourne" (produced by his son, also a recovering addict) he can't remember numerous photo and video shoots, he's not sure when one of his daughters was born ... he doesn't even remember once trying to strangle his wife!!  (He may have been "pretending" to be wasted on that one.) He even once grossed out Tommy Lee!   TOMMY LEE ...... wow.