K.K.K.K.K. (1998) is the second full-length album from Japanese singer Kahimi Karie, originally released in 1998 on the Cornelius-run Trattoria label.
Besides Doopees, he has also worked with a variety of music artists, including Grandmaster Flash, Boredoms, Kahimi Karie, Ippu-Do, Cymbals, Koizumi Kyoko, Tomoyuki Tanaka, Fantastic Plastic Machine, Hiroshi Fujiwara.
The CD also contains a cover of Kahimi Karie's "Mike Alway's Diary" and a remix by I Am Robot and Proud, as well as versions of "Science Music" and "Senjō no Merry Christmas" sans theremin.
As a musician, he has collaborated with many artists, among them are his friends Kahimi Karie, Janis Ian, Ua, and Eric Clapton.