It is the song that doesn't end..
Yes it goes on and on my friend..
SOME CRACK HEAD STARTED SINGING AND REALLY WOULDN'T STOP
AND THEN EVERYONE ELSE SANG IT FOR NO REASON JUST BECAUSE IT'S THE SONG THAT WOULDN'T END...

...

I can't stand the song that goes "Aaaat Laaast, my love has come along" the really old one. I CAN'T STAND IT.