From THE WICKER MAN: "Corn Rigs":
saw this movie the other day with my buddy mills. i think it was the basis of resident evil 4. I dont think it was a musical, but it has a lot of the most bizarre sing and dance pieces.
Many seemingly healthy people are terrified of folk music, which makes it not surprising that one of the most innovative and hauntingly effective soundtracks in the history of horror films is essentially a collection of folk songs.