What song debuted in the October 27, 1999 episode of South Park?
Falling Away from Me:  It was released as the first single from their fourth album "Issues", debuting in an episode of Comedy Central's animated series "South Park", entitled "Korn's Groovy Pirate Ghost Mystery". Korn's Groovy Pirate Ghost Mystery:  It originally aired on October 27, 1999.
i don't know