Yes, Janie, those musicians and that singer were really kickin' it.
That square drum that was played by one of the musicians is straight out of Africa, and is also found in the Caribbean. The second musician played a harmonica and the third musician/vocalist played an electric guitar.

Here's the myspace for that group:

http://profile.myspace.com/index.cfm?fuseaction=user.viewprofile&friendID=145162891

Would you believe that they're a Blues, Acoustic, Jam Band from Hamburg, Germany! Alright, Germany!

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Btw, Janie, this is somewhat off-topic, but did you notice that familiar riff [is that what you call it?} that the guitarist played towards the end of that song? Was that from "Hush Little Baby, Don't You Cry?" or is it "Hambone"? Or are they the same tune?