Yumiko Shiina (椎名 裕美子, Shiina Yumiko, born November 25, 1978), known by her stage name Ringo Sheena (椎名 林檎, Shiina Ringo), is a Japanese singer, songwriter and musician. She is also the founder and lead vocalist of the band Tokyo Jihen.
She describes herself as "Shinjuku-kei Jisaku-Jien-ya (新宿系自作自演屋, a Shinjuku-style writer-performer)". She was ranked number 36 in a list of Japan's top 100 musicians compiled by HMV in 2003.
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