Grateful Dead Graphic T-Shirt - neptune greenLevis Grateful Dead Graphic T Shirt neptune green The Grateful Dead is an American rock band formed in Palo Alto, California during the 1960s counterculture movement. Their sound was a unique mix of psychedelic rock and experimentalism. The band would frequent Ken Kesey Acid Test parties where like minded folk would trip out together in permissive bedlam. At the infamous Acid Test parties The Grateful Dead was renamed from their prior name The