50 years ago today, on 16-June-1967, the three day Monterey International Pop Music Festival began. It featured nationally-known acts like Jimi Hendrix, Otis Redding, the Who and Simon and Garfunkel, but was mainly staged to introduce San Francisco bands to the world. Janis Joplin with Big Brother and the Holding Company, the Jefferson Airplane and the Grateful Dead made an impression. Documentarian DA Pennebaker filmed the event. Monterey Pop was released the next year.