Oteil Burbridge

51, bass

Background: Aquarium Rescue Unit, Allman Brothers Band, Tedeschi Trucks Band, Vida Blue, Oteil and the Peacemakers, BK3.

Mickey Hart

72, drums

Background: Won the first ever Grammy for world music for 1991's "Planet Drum." Grateful Dead, the Other Ones, Mickey Hart Band, the Dead, Rhythm Devils.

Bob Weir

68, guitar and vocals

Background: Grateful Dead, Kingfish, Bobby and the Midnites, RatDog, the Other Ones, the Dead, Furthur.

Bill Kreutzmann

69, drums

Background: Grateful Dead, the Other Ones, the Dead, SerialPod, Rhythm Devils, BK3, 7 Walkers, Billy & the Kids.

John Mayer

38, guitar and vocals

Background: Grammy-winning pop solo artist; leader of John Mayer Trio.

Jeff Chimenti

47, keyboards

Background: RatDog, Les Claypool's Frog Brigade, the Other Ones, the Dead, Furthur, Phil Lesh & Friends, Golden Gate Wingmen.

Jon Bream