Rumiko Tani (谷ルミコ, Tani Rumiko, born August 12, 1979, in Tokyo, Japan),[2] formerly known professionally as Chinatsu Miyoshi (三佳千夏), is a Korean-Japanese television personality and a former idol singer associated with Hello!
Under the name Chinatsu Miyoshi, Tani was the grand prix winner of the Morning Musume & Michiyo Heike Sister Protegee Audition held by Hello!
[citation needed] On August 4, 1999, she released her first single, "Unchain My Heart", as the ending theme to Kiss Dake ja Iya!
[citation needed] In 2005, Tani returned to entertainment under her real name and provided vocals to the songs "W/U I Can" and "Hear My Cry", which were featured in the horror film Kokkuri-san.
[9] On October 21, 2006, Tani married South Korean singer and actor Kim Jung-min.