Not only was Bob Wills a pioneer of the Western swing sound—he helped pave the way for rock 'n' roll well in advance of its emergence. The raucous, ripping "Bob Wills Boogie" came years before Chuck Berry or Elvis ever set foot on the scene, and if the R&B strut and country twang that come together on tunes like "I'm Gonna Be The Boss from Now On" don't sound like the building blocks of rock music, then nothing does.