But I digress.
Dennis Coffey is a brilliant guitar player known for his prototype funk sound, with wah wah pedals, distortion, etc. You've heard him on "Psychedelic Shack", "Cloud Nine", "Band of Gold," "War", and many Motown soul-rock classics.
Here's his solo track "Scorpio", a fairly big hit in 1971:
Coffey was, among many other distinctions, the first white musician to appear on Soul Train.
Here's the Temptations classic "Ball of Confusion" where Dennis Coffey laid down some nasty psychedelic guitar lines: