Just when you thought it was safe to go to YouTube, there's Monkeys!
Check out:
http://www.youtube.com/watch?v=s6EfM6RyaXc
or
http://www.youtube.com/watch?v=XP5FgHxmKBI&feature=related
or any of those.
We had a great time down there at the Central Ohio Folk Festival, as one can tell from the videos!