Someone posted this on a forum too... it's "The Most Hated Holiday Song in the World" and I must agree that it's pretty bad... but at least much funnier than truly bad songs.
The most hated holiday song in the world is 21 minutes, 59 seconds long. It features the accordion and bagpipe, an operatic soprano rapping and singing atonal music, and the exhortation of a grating children's chorus: "Christmas time! Christmas time! / Jesus, Mary and the manger / Christmas time, family time / Do all your shopping at Wal-Mart!" Its creators calculate that it will be disliked by all but a few hundred of the world's population.
Listen at your own risk...