My wife and kids have been watching videos by this group for the past week -- this is my favorite track of theirs.
I have a weak spot for Irish music, pirate songs, etc.
The best song is at the end -- "Santiana". The songs are all good, but Santiana takes it up a level. Listen to this track, and see what I mean.
By the way, there's a 5th member of the group -- making all the percussion for this track with his mouth/body. I kid you not. No real drums or percussion instruments were used in the production of this medley.