Warren Haynes and Billy Gibbons, "Workin' Man Blues"
Prior to taking the stage, Warren Haynes connected the dots between Haggard and the Grateful Dead, who often covered Hag hits. "He had a way of writing honest songs and I think Jerry Garcia saw that early on," Haynes told Rolling Stone. "There is a handful of people in the country world that all rockers loved, and Merle was one of them." Count ZZ Top's Billy Gibbons as one of those rockers. He joined Haynes for an inventive, slow-burn take on "Workin' Man Blues," which, when it finally exploded into a twin-guitar duel, made for the best fret fireworks of the night. J.H.