Spirit in the Sky...was done by Norman Greenbaum, I once saw an interview with him, where he said in his gigs he used to do other stuff, but the audience just wanted to hear SitS....so he changed his set to be just an extended version of the song. :|
I believe Ralph Mactell had the same problem with his ditty 'Streets of London'....although why anyone would want to hear a short version of that let alone an extended one is beyond me.
Dr and the medics were junk, the fact that they're are still going is a disgrace Those birds in the band where rough then, they must be difficult to focus on these days .Does the bloke you know still wear bright flares? He probably smells of fields.