Question: "Chocolate Salty Balls (P.S. I Love You)" is a song from "South Park" performed by a character that is voiced by who?
Sentence (from "Chef (South Park)"): His guidance is often sought by the show's core group of child protagonists – Eric Cartman, Stan Marsh, Kyle Broflovski, and Kenny McCormick – as he is usually the only adult whom they consistently trusted.
Relevant evidence: No