A Song As A Weapon of War?

During WWI a covert plan was hatched to use a song as a weapon. I
don't know what the song was, but the general idea was to write a
song so catchy that the German's minds would be captured by the
song and that it would occupy their minds so much that their
soldiering would be affected. The idea was semi plausible because
no one had any way to listen to music in the battlefields. No radios
except military, no record players, no CD players, etc, etc, etc, you
get the idea. There are no records of how successful the song ploy
was. But I am here to tell you that a song can occupy your mind,
maybe not totally, but so much that you can't stop thinking about it!
The song 1234 has done that to me. I first heard it on an iPod
commercial, it is written and recorded by a Canadian lady who calls
herself "Feist". Here is a link to that song, but I warn you, it is
addictive! http://www.youtube.com/watch?v=p8Z-DIAthbM Bet ya
can't play it just once?