Phil Lesh, bassist and founding member of iconic rock band Grateful Dead, has died. He was 84. The news was announced on Lesh’s verified Instagram on Friday, which said he died “peacefully” on Friday morning.

Surviving band members Bob Weir, Mickey Hart and Bill Kreutzmann posted a touching message on Instagram on Oct. 25 The Grateful Dead is paying tribute to “brother” Phil Lesh. The bassist, 84, died “peacefully” on the morning of Friday,

John Mayer is mourning the loss of the Grateful Dead’s Phil Lesh. “Joining the choir of voices to express my sadness in the passing of the great @phillesh,” Mayer, 47, wrote via Instagram on Saturday,