Everyone's referencing his rôle as Chef in South Park, but to me he'll always be The Duke (from John Carpenter's Escape From New York).
So long, dude.
http://www.mtv.com/news/articles/1592489/20080810/hayes_isaac.jhtml Bonus: It's in the comments, too...
http://www.hmd225.com/spring04/hm/Isaac%20Hayes%20-%20theme%20from%20shaft.mp3 ______________________________
Edit: Meanwhile, in other news, guess who's King of Ireland now?
No, not Bono.
A mountain goat!
http://uk.reuters.com/articlePrint?articleId=UKLA69122420080810