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Koo Hye-sun was born on November 9, 1984. She is a South Korean actress, singer-songwriter, and director. She rose to fame for her role as Geum Jan-di in the 2009 television series "Boys Over Flowers". She has since starred in numerous films and television dramas, including "The King and I" (2007), "Blood" (2015), and "My Country: The New Age" (2019).