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Yukiko Okada (岡田 有希子, Okada Yukiko, August 22, 1967 – April 8, 1986) was a Japanese singer and actress, active in the mid-1980s. After winning a nationwide television show at age 15 in 1983, she debuted as an idol in 1984. Her death by suicide two years later led to a number of copycat suicides, a phenomenon that would bear her name.