Beatles music, Christmas lyrics??

I was in a Potbelly Sandwich restaurant and heard a couple of Christmas songs (rudolph, etc) that were put to Beatles music. Basically, Beatles music, Christmas lyrics. Anyone know who did these?

It's very much like the Butties CD, but I don't think that's it.

I heard "Joy To The World" done in the style of "Please Please Me" on an episode of Scrubs. The band who did that song is called The Butties (a Beatles cover band), and they actually released an entire album of Christmas songs (each one done in the style of Beatles songs).

http://www.thebutties.com/id13.html

Paul McCartney does a song called Wonderful Christmas Time, and he's in the Beatles.

Go to Amazon and search "Christmas with the Fab Four". There is another called "The Beatmas - Xmas ". These are quite entertaining.

Happy Crimble