So you’ve seen the 1991 documentary The Dancing Outlaw, right? No?? Oh, man — you have no idea what you’re missing. In the film, then-35-year-old second-generation mountain dancer and generally incorrigible ne’er-do-well Jesco White busts out some of the most insane Appalachian buck dancing moves you’ll ever see — along with even more insane rage-fueled rants. Directed by documentary filmmaker and former Nashvillian Jacob Young, The Dancing Outlaw propelled the native West Virginian to a level of regional celebrity that seems to have severely affected his ego and his day-to-day life. He even scored a cameo on Roseanne. Back in October 2008, White opened for The Black Keys at The Ryman, though his act consisted more of inappropriate gestures, slurred rambling and unwelcome audience interaction than anything else. The educated viewer might be led to believe, based on the fact that White eventually had to be dragged offstage, that he’d sampled a bit of Devil’s Brew that evening. All we can say is expect the unexpected.