John Mayer celebrates 60 years of the Grateful Dead in SF, honoring Jerry Garcia and jamming with Trey Anastasio during Dead & Co.’s shows.

John Mayer thanked his fellow Dead Heads for accepting him as part of the Grateful Dead's impact on music over the past 60 years. Mayer performed alongside Dead & Company Friday, Aug. 1, through Sunday,

These photos capture Grateful Dead fans in San Francisco to mark the band's 60th anniversary with music, memories and a vibrant Shakedown Street.