South Park creators Matt Stone and Trey Parker are the latest names to pay their respect to late singer Isaac Hayes, after he sadly passed away earlier on in the week from a stroke. Hayes voiced the character of Chef in the popular cartoon for eight years (between 1998-2006), but quit the series when South Park mocked Scientology in an episode. Stone and Parker have put their differences aside and have now posted a picture of Chef on their official site, which reads "In Memoriam Isaac Hayes - 1942-2008."