鼠先輩 (Nezumi Sempai) is a Japanese singer and comedian born 5th April 1973, in Sakai, Osaka Prefecture. He grew up in Akaiwa, Okayama Prefecture, Japan. He made his début in 2008 with the enka-parody, 六本木～GIROPPON～, which topped the Chaku-uta (着うた) ring tone downloads chart.

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