Song you're listening to???

I'm back solo this time. I love the masterpiece "The Exorcist" and I love as well the great theme (Tubular Bellls) by Mike Oldfield. Friedkin has again the genius recipe. I would love your views on my rock version of this theme :
 
An altered version of Taking Care of Business song by Bachman–Turner Overdrive featured in the titular movie with Charles Grodin and Belushi, made to describe its plot and success.
I never heard it before, I think it's pretty cool. :smuggrin: