THE SIMPSONS: Cheech (Cheech Marin guest voicing as himself, R) invites Homer to go on tour with him as the new duo "Cheech and Chunk," while Chong (Tommy Chong guest voicing as himself, L) forms a more progressive comedic team, "Teach and Chong" in the all-new "A Midsummer’s Nice Dream" episode of THE SIMPSONS airing Sunday, March 13 (8:00-8:30 PM ET/PT) on FOX. THE SIMPSONS ™ and © 2011 TTCFFC ALL RIGHTS RESERVED.