Vader having the blues, is hilarious.
As for the rap, I'd prefer not to listen to <insert derogatory term here>'s proclaim their early demise by boasting about sleeping with one's wife. Where's the redneck rap with the "Gut ya like a pig" references?
The Yoda rap is fairly hilarious though.
http://www.youtube.com/watch?v=FprQEGc3Za4