And the baby makes five!
Superstar K4 host Kim Sung Joo and his wife welcomed their third child on January 7, multiple sources confirm.
With Kim, 40, by her side at the ward, wife Jin Soo Jung gave birth to a healthy baby girl at 4:33pm in a Seoul hospital.
"Neither knew it would be a girl, they wanted it to be a surprise," a source reveals. "They are so happy and their two sons have been in the hospital to meet their new sister.
"They are still thinking about names but have the list of potentials to just a few now. They're also very excited because Kim always had a boost in luck at work whenever he had a new child."
Not that he needs it. The household favourite can be found on a number of popular shows, including MBC reality show Where Are You Going Dad?, which he recently filmed with his son, Min Guk.
"It's a joy to work with my son," he told reporters at a January 2 press conference for the series. "This experience has helped be become a better father."
The couple also have another son, Min Yul.