That's DR. DEMENTO, of course, rapping his guest appearance on "EXISTENTIAL BLUES PT. TOO?" by Tom (T-Bone) Stankus!

You Dementoids never cease to amaze me! I thought this one would be a stumper, but you proved me wrong with my full In-Box of correct entries!

After the tie-breaking random drawing, Derik "Fat D.J.D" Rhum, of Davenport, IA, wins a copy of the demented song of his choice!