Ryuichi Sakamoto is a Japanese composer, singer, songwriter, record producer, activist, and actor who has pursued a diverse range of styles as a solo artist and as a member of Yellow Magic Orchestra. With his bandmates Haruomi Hosono and Yukihiro Takahashi, Sakamoto influenced and pioneered a number of electronic music genres. Sakamoto began his career while at university in the 1970s as a session musician, producer, and arranger. His first major success came in 1978 as co-founder of YMO. He concurrently pursued a solo career, releasing the experimental electronic fusion album Thousand Knives in 1978.