pirate song?

Okay, random question time:
On one of the episodes (in the little live action part after the cartoon), there was a thing about pirates. In it were a few guys dressed up as pirates who were telling the kids about pirates and scurvy and such.
One of the guys sang a "sea shanty" at one point (I think the others joined in too?) and I LOVE that song. I can't remember how it went, and I don't know the name of it. Does anyone here know? (or even know what I'm talking about? lol)
Thanks for the help.
~Maurie