tadao oka (岡忠夫, "oka tadao", april 1, 1948 {age 73}, fukushima prefecture - ) is a japanese bass player for japan's group sound band, the carnabeats. his real name was motonari takano (高野元成, "takano motonari") and had two nicknames, dende (デンデ, "dende") and goldfish (金魚, "kingyo").