South Park

Season 3, Episode 10 — Korn's Groovy Pirate Ghost Mystery

TMDB episode metadata

Show: South Park

Episode title: Korn's Groovy Pirate Ghost Mystery

Air date: October 27, 1999

Director: Trey Parker

Top billed cast: Trey Parker, Matt Stone, Isaac Hayes, Mary Kay Bergman, Mona Marshall, Eliza Schneider

Korn comes to South Park for a Halloween gig and learns of the boys problems with the 5th graders at South Park Elementary. Korn agrees to help the boys get revenge on the mean 5th graders all in a spooky Scooby Doo rip off!

Source: TMDB