January 7 - Max Yasgur, owner of the New York farm where the 1969Woodstock Festival was held, is sued for $35,000 in property damages by neighboring farmers
February 17 - Joni Mitchell announces that she is retiring from live performances, following her show at London's Royal Albert Hall. Mitchell would be back performing concerts within a year.
March - Jim Morrison of The Doors is found guilty of indecent exposure and profanity because of his behavior during a March 1, 1969 concert. Morrison is sentenced to eight months of hard labor and a $500 fine.
April 2 - The London Magistrate's Court hears arguments on John Lennon's indecency summons for his exhibition of erotic lithographs during his art exhibit on January 16
... and later "The Grateful Dead", they became the de facto resident band of Ken Kesey's Merry Pranksters[?], with the early sound heavily influenced by Kesey's LSD-soaked ...