San Francisco '67 inspired utopian songs and revolutionary sounds that turned on the world. While disruptors like Jimi Hendrix and The Mothers of Invention were exploring rock's avant-garde potential, The Beatles, The Association and The Zombies fused classical ideas and vintage pop with their own compelling melodies. Scott McKenzie, The Animals and The Youngbloods celebrated the scene's sensual idealism with come-hither hits, while the Grateful Dead, Jefferson Airplane and Quicksilver Messenger Service blew minds with loud guitar storytelling at the Fillmore and elsewhere.