Tetsu Yamauchi was born in 1946 in Fukuoka. In the late 1960s, he played with the band Samurai. His involvement with Samurai led to him working as a session musician in both Tokyo and London. In 1972 he recorded the album Kossoff, Kirke, Tetsu and Rabbit with Free guitarist Paul Kossoff and drummer Simon Kirke, together with keyboard player John “Rabbit” Bundrick. He subsequently joined Free and in 1973 the Faces (replacing Ronnie Lane). When Faces broke up in 1975, he returned to Japan, and he has become a fixture on the Japanese music scene.