Getting Gay With Kids
These musically-talented kids, many of whom hail from South Park themselves, go around the world talking to people about the environment with their leader, Miss Stevens. They stop in town to teach the kids about the wonders of the Costa Rican rainforest when Cartman, Stan, Kyle and Kenny end up having to join a trip to Costa Rica. After a long and difficult journey through the jungles, they change their lyrics, moving to support deforestation - 'cause being an activist is totally gay.
Contrary to popular belief, they do not actually gay with kids. You might be looking for NAMBLA instead.
- Rainforest Schmainforest (s03e01)