Watch Free Online HD Moviesjoy. This shows Howlin' Wolf prowling on stage at the first Washington D.C. Blues Festival in November 1970, supported by his top-notch band. Hear him moan his earth-shaking blues and watch his unforgettable stage antics and you'll see why Sam Phillips - who also discovered Elvis Presley, Johnny Cash and Jerry lee Lewis - called Howlin' Wolf his greatest discovery.