My vote goes to Memphis Soul Stew by King Curtis and the Kingpins.
"Today's special is Memphis Soul Stew
We sell so much of this, people wonder what we put in it
We gonna tell you right now...
Give me about a half a teacup........of bass
Now I need a pound of fatback drums
Now give me 4 tablespoons of boiling Memphis guitars
This goin' taste alright
Now just a little pinch of organ
Now give me a half a pint of horn
Place on the burner and bring to a boil
That's it, that's it, that's it right there.
Now beat.........well."
Funky as all f**k.