The leaders of Gov't Mule, Warren Haynes and Allen Woody, should be well known to Allman Brothers fans for their stint in Southern rock's most famous native sons. In 1989 Haynes became the second replacement for Duane Allman, providing a good foil for Gregg Allman and Dickey Betts on guitar and vocals; Woody filled out the Allman sound on bass. Five years after their debut, the duo joined drummer Matt Abts in the side project Gov't Mule, a band in which the Allman Brothers' influence is apparent but complicated with the psychedelic, bluesy power trio feel of Cream.