Suzuki's true notoriety comes from his work with the long-lived Moonriders, a group which became one of Japan's most innovative rock bands. Recently, he has also composed scores for a number of films, including The Blind Swordsman: Zatōichi, Tokyo Godfathers, Higuchinsky's Uzumaki, Hiroshi Shimizu's Chicken Heart, as well as Kitano's more recent Outrage and Beyond Outrage films.
Suzuki was born in Tokyo, Japan. In the early 1970s, he became involved with the Japanese band Hachimitsu Pie, who released one album in 1973. Later in the 1970s, Suzuki functioned as the occasional-leader and regular singer of the Moonriders—the group's first album was in fact credited to "Keiichi Suzuki and the Moonriders"—which also included his brother Hirofumi. Suzuki will also be familiar to fans of the Yellow Magic Orchestra for his various collaborations with Yukihiro Takahashi, most notably on the material credited to The Beatniks. He was also a member of the trio Three Blind Moses.
In February 2008, Suzuki released a new solo album Captain Hate & First Mate Love in collaboration with another Keiichi, Keiichi Sokabe, touring together in late spring 2008. The follow-up Pirate Radio Seasick appeared in 2009, and the third part In Retrospect in January 2011.