Legend has it that King Sonny first saw Jimi Hendrix play with the Isley Brothers on the Johnny Otis Show in 1964. One night while performing at a popular 60s cafe in San Francisco King Sonny wrote "Purple Haze" and dedicated it to Hendrix. Janis Joplin told him to write it down on a napkin and she gave it to Jimi. The rest is history..... for more about King Sonny go : here