Could not find a good original version of Ozzy on youtube.... Strange, as it is such a classic. Love the outro too. https://www.youtube.com/watch?v=Fdk_UFrLOUY
Actually I think most of Ozzy's songs are about mental illness lol https://www.youtube.com/watch?v=MyR0r1m8enQ
Yeah, I can think of a few other ones by him or Sabbath as well But Diary of a madman is the best where it comes to him and this theme.
While less explicit than some of these others thematically, probably one of the the most authentic depictions of mental illness put on record. http://youtu.be/xIc2EgS9MNg
And of course, the reverse side: http://youtu.be/4gbvcEkuFFI (Equalize the volume and play them both at the same time....if you time it correctly both songs will cancel each other out and you won't hear a thing!)
Pretty much this whole album: https://www.youtube.com/watch?v=8JIQJc8WU7U "They say I'm not mad it's just that I have a multi faceted personality disorder. Sounds fucking mad to me!" C/S, Rev J