Here I am covering Mr Crowley. I took a drum and bass backing track, and played 2 rhythm tracks (panned hard left/right) over it, then I did the solos and added the original keyboard intro. I also used a 'vocals only' track for Mr Osbourne and laid it over the top. The video is from a live (obviously) performance that didn't quite sync up, so there is a bit of inconsistency in matching the voice/guitars, but it works. I haven't played this song in 30 years, so it was quite the trip down memory lane.
Been having copyright issues with the vid, so if you can't view it, here's a link to just the tune:
SoundClick artist: PRD Solo Project - page with MP3 music downloads