So ... what do you think of the headliners? I've seen a couple of them before. Gov't Mule front man Warren Haynes has played with half the jam bands under the sun -- Allman Brothers, Phil Lesh, the Grateful Dead. I last saw him with Phil Lesh several years ago. He's a nasty (in a good way) guitarist, with a gravelly, soulful voice. I love how, in this photo, he looks like a zombie about ready to eat the microphone.