ART

Five artists who pioneered psychedelic posters of the 1960s that touted rockers like the Grateful Dead, Janis Joplin and the Doors are going to court in a copyright case. Victor Moscoso, Alton Kelley, Stanley Mouse, Wes Wilson and Rick Griffen, who originally collaborated as part of Family Dog Productions, filed a suit in San Francisco Federal Court accusing their former production manager, Chet Helms, with copyright infringement. “Due to the vagaries of hippiedom, we didn’t nail down the business side of things like we should have,” Moscoso said Tuesday. The artists were originally paid about $50-$100 for each poster, the suit said; the lawsuit seeks $50,000 for each of the posters.