Hi-Fi Set was a Japanese chorus group active from 1974 to 1994, comprising Junko Yamamoto, Toshihiko Yamamoto, and Shigeru Okawa. Formed after the disbandment of Akai Tori, they debuted with the single and album "Sotsugyou Shashin" in 1975, gaining popularity in Japan. Their 1977 cover of Morris Albert's "Feelings" became a significant hit, leading to an invitation to the prestigious Kōhaku Uta Gassen. Over two decades, Hi-Fi Set released 26 singles and 19 albums, leaving a lasting impact on the Japanese music scene. ([last.fm](https://www.last.fm/artist/Hi-Fi%20Set/%2Bwiki?utm_source=openai))