I have done my bit of Google research - its a decades old song that Quantas has used a few times over the years but this popped up on my YT and you have to bear in mind the date - 2022 - Australia coming out of 3 years of almost total lockdown - Aussies could finally go home and the song - the cinemaphotography and the timing means its something I find moving. If I was an Aussie stuck in Belgium and saw this I'd have been crying my eyes out and have booked a flight home before its end