It’s the Grateful Dead’s 60th anniversary, and a piece of genuine psychedelic history just surfaced from that era of counterculture fog in San Francisco.

A piece of Grateful Dead history is up for grabs. Available for bid on Heritage Auctions is a primitive hand-drawn poster that asks, “Can You Pass the Acid Test?” According to the listing ...

Does a vintage poster auctioned this month disprove the long-believed location of the band’s 1965 performance?

It has now been 60 years since the Grateful Dead formed. The US rock band first played at Ken Kesey’s “acid tests” in La Honda, California, in 1965. There, attendees would consume large doses of LSD ...

In this exclusive interview, Bob Weir and John Mayer break down the Sphere experience, latest gear adjustments and their ever-evolving musical partnership and float the possibility that they'll enter ...

Heritage Auctions has a poster up for bid that is billed as the very first Grateful Dead concert poster because it’s for the acid test in San Jose on Dec. 4, 1965. But the address on the poster ...