Singer Jerry Garcia Performs With The Grateful Dead [Getty Images]

SAN FRANCISCO, CA - SEPTEMBER 28, 1975: Singer Jerry Garcia performs with The Grateful Dead at Lindley Meadow in Golden Gate Park, San Francisco, California, September 28, 1975. (Photo by Alvan Meyerowitz/Michael Ochs Archives/Getty Images)

Michael Ochs Archives Alvan Meyerowitz