This historic video was made on 15 July, 1984 at a free concert in San Francisco's Golden Gate Park. I'm sitting in on vocal and guitar with the all star band, the Dinosaurs composed of Barry Melton, guitar (from Country Joe & the Fish); John Cipollina, guitar (from Quicksilver Messenger Service); Peter Albin, bass (from Big Brother & the Holding Company) and Spencer Dryden, drums (from Jefferson Airplane). I had played with the '60s San Francisco band the Charlatans. We played the Robert Johnson blues tune, When You Got A Good Friend. The only discussion beforehand was me telling the band, "Key of A." This is the kind of jam that can never happen again...both Cipollina and Dryden are deceased and free concerts in the park are a thing of the past. The last concert held in Golden Gate Park had a $125 ticket price.