Anyone know the name of the Irish jig at the beginning of DKM's "Shipping up to Boston?"

[Juice_Layer]

I'm looking for mandolin tabs on the part at the beginning of the song "Shipping up to Boston" by the Dropkick Murphys. I'm about positive it's a pretty popular one, I know that they use a lot of old and classic material (usually just cover stuff other people have done) but I don't know what it's called.