I'm trying to find a 12-bar blues backing track to practice with, preferably acoustic and in G. Nothing fancy just standard 12 bar being played by bass or guitar.

Could someone point me in the right direction?

google free 12 bar blues backing track in G, or similar.

There are loads out there, some of them can be really cheesy though...
I've been looking but I still can't find anything I can use. Does anyone have a specific link?