Season 3/Episode 301 - Rainforest Schmainforest
About this South Park episode:
Bad behavior force Stan, Kyle, Cartman and Kenny into the "Getting G..y with Kids Choir" as part of an expedition down to the Costa Rican Rainforest with a do-gooder hippie music teacher (the voice of Jennifer Aniston). But when the group winds up lost in the rainforest, they develop a new-found "respect" for nature. Meanwhile, Mr. Mackey must reassure the concerned El Presidente that the show will go on.