I found this amazing joke Rap Battle video clip today. Starring Jeve Stobs VS Gill Bates. It is shot in such a professional way, with all the nitty gritty details, to make it a pro-videoclip. And besides that, the song is good man! At the end, third rapper comes into the battle HAL6000 (Heuristically programmed ALgorithmic computer) representing Linux. Steve Wozniak's song is HERE on this older post