Keep it simple. Feeling Hot Hot Hot is the best I've heard mentioned so far. It's fast and has a good 'Ole' chant.
Ole, Ole,
Ole, Ole,
Ole, Ole,
Ole, Ole,
Jurgan Klopp, Klopp, Klopp
Da Da Da Da Da
Jurgan Klopp, Klopp, Klopp.
Da Da Da Da Da
And repeat until voice is gone.