Kaleidoscope (originally the Kaleidoscope) was an American psychedelic folk group who recorded four albums and several singles for Epic Records between 1966 and 1970. The band membership included David Lindley, who later released numerous solo albums and won additional renown as a multi-instrumentalist session musician, and Chris Darrow who later performed and recorded with a number of groups including the Nitty Gritty Dirt Band.

Source: Wikipedia (https://en.wikipedia.org/wiki/Kaleidoscope_(American_band))