Mickey Hart, Bob Weir, and Jerry Garcia backstage in 1977.

The Grateful Dead backstage in 1977 Left to Right: Bill Kreutzmann, Jerry Garcia, Bob Weir, Keith Godchaux, Mickey Hart, Phil Lesh, Donna Jean Godchaux.

Jerry Garcia, Bill Kreutzmann, Phil Lesh, and Bob Weir in Long Strange Trip (2017)

Amir Bar-Lev, Mickey Hart, Bill Kreutzmann, and Bob Weir at an event for Long Strange Trip (2017)

Mickey Hart, Bill Kreutzmann, Bob Weir, and Eric Eisner at an event for Long Strange Trip (2017)

Mickey Hart, Bill Kreutzmann, and Bob Weir

John Nein, Amir Bar-Lev, Mickey Hart, Bill Kreutzmann, and Bob Weir

John Nein, Mickey Hart, Bill Kreutzmann, and Bob Weir

Anderson Cooper and Bob Weir in Anderson Cooper & Bob Weir (2022)

Jerry Garcia and Bob Weir in Petulia (1968)

Bob Weir in Janis: Little Girl Blue (2015)

Jerry Garcia, Grateful Dead, Bill Kreutzmann, Phil Lesh, Ron McKernan, and Bob Weir in Magic Trip: Ken Kesey's Search for a Kool Place (2011)

Jerry Garcia and Bob Weir backstage in 1977.