Last Year's Holiday Story

I consider myself a casual South Park fan, mostly because I didn't actually get into the show (besides catching episodes here and there) until last year, mostly due to my husband randomly watching the reruns (which is how he watches most shows).  So it was about this time last year when he had on the episode "Mr. Hankey's Christmas Classics."  I was doing something else, not really paying attention, until this segment started:

Mr. Hankey's Christmas Classics
Tags: SOUTH
PARKmore...

I was shocked, shocked I say, for despite having never seen this episode before in my life, I knew the sequence by heart, though not exactly as it appeared on the show.  You see, a few years ago, I discovered the Carols For a Cure CD series, a charity offering where every year the current casts of various Broadway shows (and the occasional Off-Broadway show and special guests) record a track, and the profits go to help fight aids.  And in 2003, guess what the cast of Hairspray did:

The joke here being that Marc Shaiman, who wrote the music and co-wrote the lyrics for Hairspray, worked with Trey Parker and Matt Stone on the songs for that episode, which originally aired in 1999.