Kim Jong Kook Becomes a Grandfather 9 Months After Marriage: 'Since I'm 50, It's Not Like Before'

Singer Kim Jong Kook will reveal the story of how he became a grandfather only 9 months after marriage on KBS2's 'Problem Child in House' this coming 28th.

New trot sensations Son Tae-jin and Park Ji Hyun will appear to showcase their delightful wit.

Son Tae-jin will reinterpret Kim Jong Kook's hit song 'Lovable' into both classical and trot versions. While listening to this, Kim Jong Kook also attempted to try the trot singing style himself, but the unexpected atmosphere turned the set into a sea of laughter.

After hearing Kim Jong Kook's trot singing style, Park Ji Hyun praised him, saying, "It sounds similar to senior Na Hoon-a's vocal tone," and a slightly encouraged Kim Jong Kook showed great confidence by saying, "I should try participating in a trot audition program."

Son Tae-jin will also reveal a special family relationship with music industry senior Shim Soo-bong. He revealed that Shim Soo-bong is his great-aunt and explained, "There is almost no age difference between her and my father, so we have been close since I was young."

Furthermore, Son Tae-jin raised curiosity by revealing that because Shim Soo-bong finds the title 'grandmother' awkward, he calls her in a special way.

Kim Jong Kook, who is still in the honeymoon stage as it has only been 9 months since his marriage, confesses that he naturally became a grandfather when a niece or nephew, whose age difference is not that large from his own, had a child.

He provided laughter by candidly admitting, "My grand-niece/nephew calls me grandfather. I hate hearing that sound, so I intentionally avoid seeing them."