Warren Haynes is an American musician, singer and songwriter. He is best known for his work as guitarist with The Allman Brothers Band and as founder member of the jam band Gov't Mule. Early in his career he was a guitarist for David Allan Coe and The Dickey Betts Band. Haynes is also known for his associations with the surviving members of The Grateful Dead, including touring with Phil Lesh and Friends and The Dead.