The Origins of the Rock Festival. The Big Three where all began. Grateful Dead, Who, Jimi Hendrix,

The Origins of the Rock Festival. The Big Three where all began. Starring
Grateful Dead, The WHO, Jimi Hendrix, Jefferson Airplane, The Byrds,
Big Brother and The Holding Company, Otis Redding, Simon and Garfunkel
Country Joe and the Fish and Quicksilver Messenger Service