There's an old term "Six degrees of separation", meaning that everyone and everything is six or fewer steps away, by way of introduction, from any other person in the world.  We can do that with Rock musicians too.  Take Ozzy Osbourne.  His "four degrees of separation takes him many places as he has extended himself through Black Sabbath, his solo career and some guest spots with other artists.  So...here we go.  Check these out.

Black Sabbath:  It's the first degree of separation and the band Ozzy became famous fronting.

Ozzy got fired from Black Sabbath and then he launched his solo career.

Ozzy stretched out even further, into the 3rd degree by guesting on Lita Ford's album, an artist that Sharon Osbourne managed.

;Ozzy through the years went onto guest on many albums/songs.  This one I like because it's a really good remake of a cool tune. Ozzy and Coal Chamber "Shock The Money"

Ozzy will keep rocking into he croaks, I'm sure of that.  I doubt is there's any more further movement in his career, just familiar places like another Black Sabbath album and perhaps another solo effort.  We shall see!

More From WGBF-FM