Yuko Oka (岡ゆう子、born Yumiko Sakai on 25 September) is an enka and kayokyoku singer from Saga, Japan. Oka made her début on the Japanese Victor label in 1979 with the double A-side "Hakata no Koi"/"Showa Neon Hana" (「博多の恋」/「昭和ネオン花」). In 1988 she signed with her current record label, Teichiku. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.