Ryuichi Sakamoto (?? ?? Sakamoto Ry?ichi?, born January 17, 1952) (Japanese pronunciation: [sakamoto ?ju??it?i]) is a Japanese musician, activist, composer, record producer, writer, singer, pianist, and actor based in Tokyo and New York. Beginning his career in 1978 as a member of the electronic music group Yellow Magic Orchestra (YMO), Sakamoto served on keyboards and sometimes vocals. The band was an international success, with worldwide hits such as “Computer Game / Firecracker” (1978) and “Behind the Mask” (1978), later playing a pioneering role in the techno and acid house movements of the 1990s.