I searched for the song online and was able to quickly find out that the Andrews Sisters had recorded this song in the 50's. I keep being surprised to discover that the "old songs" my parents would sing were actually contemporary songs released in the time they were singing them.
photoshow. I'll bet my siblings will quickly recall the song and that the younger generation will never have heard it. It's not one of those Christmas songs that has lived on to become part of our collective Christmas psyche.
Let me make a suggestion -- unless you are really into 50's music, I'd stop playing it after the chorus. If, on the other hand, you love the Andrews Sisters, play away.