Kool Keith and Kutmaster Kurt have been dialed into hip-hop hijinks for years and years now, treating the world to a series of concept-oriented recordings using a series of wild personnas. These are the guys who, in one way or another, brought the world brilliant moments by Dr. Dooom, Dr. Octagon, Black Elvis, The Ultramagnetic MCs, and more. Now, with their current release, they've once again morphed, into the Diesel Truckers.