The Grateful Dead's Bob Weir, Phish bassist Mike Gordon, and the Allman Bros./Gov't Mule's Warren Haynes are among the artists who have signed on to perform at this year's third annual Jammy Awards, p

The Grateful Dead's Bob Weir, Phish bassist Mike Gordon, and the Allman Bros./Gov't Mule's Warren Haynes are among the artists who have signed on to perform at this year's third annual Jammy Awards, presented by TDK. Weir will not only be on hand with his band Ratdog for the Oct. 2 event at New York's Roseland Ballroom, he will also accept a lifetime achievement award on behalf of the Dead.

Haynes' Gov't Mule is also on the bill, while Gordon will perform with noted acoustic guitarist Leo Kottke just days before the Oct. 8 release of the pair's debut Private Music album, "Clone." Gordon and Kottke will also launch a short U.S. tour in November in support of the project.

The Relix magazine/Jambands.com-produced event will also boast performances by the B-52s' Fred Schneider and Kate Pierson, the Tom Tom Club (featuring the Talking Heads' Tina Weymouth and Chris Frantz), Rusted Root, moe., the Dirty Dozen Brass Band, the Blind Boys Of Alabama, Particle, and Robert Randolph & the Family Band.

Jammys executive producer Peter Shapiro tells Billboard.com that "three to five more artists" will be added in the coming weeks, and that "hopefully some surprises" will materialize that evening. "We plan to pair musicians who don't usually play together and see what happens," Shapiro says.

The show is planned to run for about five hours, with "about eight pairings of musicians on the main stage," and a side stage where a house band and some of the artists will also perform. "The Jammys are really a reason to get us all together to celebrate this music," Shapiro adds.

As previously reported, Widespread Panic leads the field with five Jammy nominations, including live performance and live album of the year nods. As a solo artist, Phish guitarist/vocalist Trey Anastasio is nominated for three awards, as is Gov't Mule; Dead member Phil Lesh, moe., Keller Williams, and Randolph are each up for two Jammys.