Kim Wan-sun was born Kim I-sun on May 16, 1969, the third of her parents' five daughters. When she was in middle school, Kim began training to be a singer and dancer under the guidance of her aunt, Han Baek-hee, who managed successful musicians including the singer Insooni.
Kim Wan-sun, born Kim I-sun on May 16, 1969, was the third of her parents' five daughters.  When she was in middle school, Kim began training as a singer and dancer under the tutelage of her aunt Han Baek-hee, who had managed successful musicians including the singer Insooni.