Born Again 80's says: "In October of 1983 XTC recorded 2 Christmas songs intended as a double sided Christmas single. The tracks were produced by XTC and David Lord and were released under the guise of The Three Wise Men and the Good Lord. The A-side of the single was "Thanks For Christmas" with the B-side being "Countdown to Christmas Party Time". Andy Partridge from XTC had originally intended to invite some office girls from Virgin Records to sing on the record and call them The Virgin Marys. Although authorship of both songs is credited to Kaspar, Melchoir, and Balthazar, they were actually written by Andy. It was never decided who was Kaspar, Melchoir, or Balthazar among the XTC members. Great Yuletide tracks considering Partridge is an atheist but loves Christmas."
"As a Christmas bonus I've included the original demo of "Countdown To Christmas Party Time" which in a way I kind of like better than the released version. I've also added Snowman which was a track from XTC's 1982 album English Settlement. The track is not exactly meant as a Christmas song but I think it has that seasonal feeling and always blends in well with any Christmas mixes I put together." Link.