Karl was approached by Jimi Hendrix to create a more psychedelic look to his ‘Are You Experienced’ album. Ferris’ iconic fisheye photograph of The Jimi Hendrix Experience, used on ‘Are You Experienced’ created quite a stir with the press when it was released in 1967 as "The New Psychedelic Photography". His subsequent photographs appeared on the US releases of Hendrix albums Axis Bold As Love, Electric Ladyland and Smash Hits.

You can view Karl’s Hendrix images, along with equally psychedelic portraits of Cream and Donovan here