"I was busy all day since the baby was born, as I had to feed her, burp her, change her nappy, put her to bed, and me falling asleep... So this is how I bring the news", she wrote. "Thanks to all your support, I gave birth to a baby yesterday at 9:43 a.m., four days after the due date, and both the Baby and I are healthy".
Lee also gave birth to her second daughter at home by water birth in 2015, while her first daughter was delivered in hospital in 2010.
Her husband is the composer and singer Joo Young-hoon, who is 12 years her senior. They married in 2006.
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