A short but amazing film of Visnujana Swami leading the kirtan party at the ISKCON 1974 San Francisco Rathayatara festival.
The ecstatic kirtan is followed by a short section of Srila Prabhupada's Rathayatra address. Unfortunately there are some issues with the audio, still the video is first-class and this film is the only surviving audio or video record of Srila Prabhupada's 1974 visit to San Francisco.
So please watch it. Very short but very inspiring also.