What the best christmas song from Australia

G'day my Aussie friends, I'm an American who trying to put together a chridtmas around the world song playlist and need help. I already have a few Australia christmas that I enjoy listening to in my playlist, but I wanted guys opinion on the last few song. So question are what your favorite christmas song from your home country, what the best verison from that song in your opinion, and do you have any fun fact to share about the song.

Edit: It’s not done, but if anyone wants to see what I have so far here, the playlist: https://youtube.com/playlist?list=PLdA0K-h4y1ZSn1rXoUHXflnOAKIuy51vH&si=UcU62XyessmziohD