In the 'What do you write...' thread Amos laughed at me for using the term 'instant folksong'.
So here's a new game.
Name ONE modern song that 'in your opinion' will become a folksong.
My nomination is 'When your pickle glows at night', here and that's not to get back at Amos, it's because I think that the song is just too good to die and I can imagine people singing it at parties hundreds of years from now.