jungjoonha2 jungjoonha1   jungjoonha3 Infinite Challenge Jung Joon Ha’s adorable baby son was captured on the show’s preview. On next week’s show, Infinite Challenge members will be invading Jung Joon Ha’s house to find him holding his adorable 3-months-old son. His baby son has chubby cheeks and the cutest eyes, but surprisingly, many say he resembles Jung Joon Ha, who has the unflattering nickname ‘dumb brother’. Jung Joon Ha married a Korean-Japanese flight attendant whose nickname is Nemo --  the clownfish -- just last year.