San Francisco saw the rise of Rock's most influential musicians during the Summer of Love in 1967. An unknown Jimi Hendrix opened for Jefferson Airplane at the kick off to Bill Graham's Summer Series-by the end of summer, Hendrix was lighting guitars on fire and had become a black sex symbol for white America. Carlos Santana, a high school student in the city, convinced Paul Butterfield to lend him his guitar, and the Fillmore stage-Santana eventually became the only musician to headline the legendary venue without a record. The Grateful Dead defied the length expectation of a song, introducing rock to the concept of a jam band. The Who, Big Brother & the Holding Company, Creedence Clearwater, and Fleetwood Mac were among many to gain the attention of the crowds that same summer after opening for bands like Pink Floyd, Cream and Jefferson Airplane. Causing the largest migration in US history, people flocked to the Summer of Love where they ate the food distributed by the Diggers, read articles in the Oracle by Allen Ginsberg and Gary Snyder, sucked up the new sounds, colors and ideas, returning home with stories, records and flowers to share.