In the ever-evolving cast of the Dead, vocalist Joan Osborne and keyboardist/vocalist Rob Barraco have exited, to be replaced by jam-band guitarist extraordinaire Warren Haynes, sources say.

In the ever-evolving cast of the Dead, vocalist Joan Osborne and keyboardist/vocalist Rob Barraco have exited, to be replaced by jam-band guitarist extraordinaire Warren Haynes, sources say. Haynes (Gov't Mule, the Allman Bros. Band) will also provide vocals. The new lineup will debut Feb. 9 at the Warfield Theatre in San Francisco; presumably, a summer tour will follow.

The rest of the Dead consists of original Grateful Dead members Phil Lesh (bass), Mickey Hart (drums) and Bob Weir (guitar), as well as Billy Kreutzmann (drums), Jimmy Herring (guitar) and Jeff Chimenti (keyboards).