Haven't heard it, but if it mimics "There's only one Henrik Larsson" from his days at Celtic then the original tune is "Walking in a Winter Wonderland".
I think we need more mean-spirited chants. I think we've been too nice to the world Lord knows they've returned the favor ^^
If you want to be annoying, try and sing "BUSH WAS RIGHT BUSH WAS RIGHT!" ----> http://www.youtube.com/watch?v=JwRjbyqyfsw