Ozzy Osbourne's work as a solo artist.
I don't believe his work with Sabbath is overrated but his solo stuff is very much so, particularly over the past 15-20 years.
Those first 2 or 3 solo albums are excellent IMO.. I still haven't heard anything that sounds like it without ripping off of it..

I don't know what Ozzy was/is thinking with the rest of them..
