Kim Jaejoong, beloved singer, actor, and producer, surprised fans with a personal and endearing update — he’s about to become a granduncle at just 39 years old.
On March 24, Jaejoong took to social media to share the joyful news, announcing that his niece is expecting a baby. In a lighthearted caption, he wrote,
“A new life has joined my niece’s family. In 10 months, I will become a grandpa (granduncle),” charming fans with his signature humor.
Alongside the announcement, Jaejoong posted a playful photo of himself pursing his lips with his eyes shut tightly, jokingly dubbing himself “the first idol grandpa.” Fans couldn’t help but laugh at his witty take on stepping into this new family role.

For those who know Jaejoong’s background, the news is even more special. As the youngest of nine siblings — with one brother and eight sisters — Jaejoong comes from a large, close-knit family.
He has a total of 13 nieces and nephews, making family gatherings nothing short of lively.
Interestingly, this moment was hinted at last year during his appearance on KBS 2TV’s ‘Stars’ Top Recipe at Fun-Staurant’, where his eldest sister, 20 years his senior, teased that he’d soon become a “grandpa” — a prediction that has now come true.
While embracing this new family milestone, Jaejoong is also thriving professionally. He recently launched his own entertainment agency, iNKODE Entertainment, where he’s been active as both a producer and businessman.
His agency manages a talented roster, including child actress Oh Ji Yul, actor Jung Si Hyun, Lee Ji Hoon, Kim Min Jae, and former KARA member Nicole. Additionally, Jaejoong introduced the rookie girl group SAY MY NAME last year, showcasing his expanding influence in the K-entertainment industry.
This heartwarming news of becoming a granduncle reflects another side of Jaejoong — beyond the spotlight, he remains a devoted family man, proud of his roots and excited about the new generation joining his family.
Fans flooded his post with congratulations, expressing how refreshing it is to see idols openly share such personal moments.
As Jaejoong humorously steps into the role of “idol grandpa,” fans look forward to more glimpses of his journey — not just as a celebrated artist and CEO, but also as a proud granduncle ready to welcome the newest addition to his big family.