Watch Grateful Dead Perform on ‘Playboy After Dark’ After Being Secretly Dosed With LSD in 1969

While hanbging out in Los Angeles, as the Grateful Dead did from time to time during January 1969, the group performed two of their songs, “Mountains of the Moon” and “St. Stephen”, on the set of Playboy After Dark after secretly dosed with LSD. I’m sure they didn’t mind, but…

Hugh Hefner: I wonder if we could get you to do a number for us?
Jerry: Absolutely not.