Kak was an American psychedelic rock band active between 1967 and 1969, originating from Davis, California. Formed by vocalist and rhythm guitarist Gary Lee Yoder and lead guitarist Dehner Patten—both former members of The Oxford Circle—the lineup was completed with bassist Joe Dave Damrell and drummer Chris Lockheed. Their sole album, "Kak," released in 1968, showcased a style influenced by prominent Bay Area bands like Moby Grape, Quicksilver Messenger Service, and the Grateful Dead. Despite limited commercial success at the time, the album has since become a sought-after collector's item, leading to its reissue as "Kak-Ola" in 1999, featuring additional tracks including demo recordings and solo works by Yoder. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Kak_%28band%29?utm_source=openai))