The song in question was annoying me a while ago, where the tune seemed to pleasantly annoy me. I could almost forget it was a Christmas song. I did try to find out who performed the song, and was surprised to find that "Little Drummer Girl" didn't correspond to any song I had in mind. (neither Alicia Keys nor David DeMordaunt) The tune eventually left my head, but the other day I was reminded of it once more, and have had an extensive search trying to key into the vaguest clues I have to the identity of the song.
So I must have got the tittle wrong. My hearing is shoddy at times.
To me, it's nothing like "little Drummer boy" apart from the chorus "Pa rum a pum pum" repeated a couple of times, sometimes with notable tubular (?) bells as part of the chorus. In my mind though, having "pa rum a pum pum" as a chorus line would almost certainly mean it's a version of "Little Drummer Boy" .
The only other words I can think of presently are "home for christmas" sung in a rather monotone manner, but I'm not that sure if I've heard it correctly.
Probably what makes the song stand out is it's use of a synthesised accordion sounding accompaniment and rhythm which is not typically 4/4 sounding.
I'd guess it was from the late eighties or early nineties as it used to get a fair bit of airplay on the Australian radio networks, but the last couple of years I haven't heard it as far as I know.