Music to Wrap By

I am listening to Christmas music on Music Choice while wrapping gifts. I am hearing some songs I haven't heard before. Merry Christmas Everyone by Shakin' Stevens? Who or what in the flapjack is Shakin' Stevens? The song is from 1990 according to Music Choice.

Then I heard The Mistletoe And Me by Isaac Hayes. Do Scientillogicalists celebrate Christmas? I didn't catch the year on Music Choice so maybe Isaac Hayes released it before he became indoctrinated.