And before you all start saying it is Happy Birthday, that song is very much a western tradition. Almost every country has some sort of birthday song, but it varies significantly. The Happy Birthday song they sing in China, for instance will be completely different to the one we are familiar to in the US/UK.
Happy Birthday is of western origin, but it's used around the world today.
Everyone saying songs by their fave is just stupid, other than maybe Bad Romance or Just Dance. Lady Gaga is global. My friend went on a expedition to help kids in parts of Africa, they had iPod speakers and put Bad Romance on and the children had heard it on their feeble wind up radio that had been donated to them.
I don't even stan for Gaga, it's just sort of true.
What's funny is that almost the WHOLE UK population knows the words to the American national anthem than the UK anthem.
Are you having a laugh? Have you even been to the UK. I can GUARANTEE you most British people wouldn't know what the American national anthem is. That is fact. And they WOULD know God Save the Queen.