Andy Hess is an up and coming bass player. Originally from California, his first expirience was from playing in local blues bands. He moved to New York in 1990. At first he found little work, but by 1996 he had honed his skills by working with other local musicians. He has played with: Freedy Johnston, Tina Turner, Joan Osbourne, John Scofield, and David Byrne (of the Talking Heads), as well as teaming up with Gabe and Laurie Anderson for a song on the Red Hot and Latin album. Andy got his first big gig touring with the Black Crowes after the departure of Greg Rzab. In 2003, he was named the new bass player of Gov't Mule, replacing the late Allen Woody. Hess's style is hard to nail down. As an session player, he can play almost anything. Working within Gov't Mule he is following in the foot steps of Allen Woody, laying down a hellacious rumble over which the rest of the band rides.
(Thanks to Chiisuta for additional information)