Hoon, former member of boy group U-KISS, announced on Instagram that he is expecting his first child. He shared an ultrasound image of the baby and expressed his commitment to being a good father. Hoon got married to Hwang Ji Sun, formerly of Girl’s Day, in May 2022. Hoon joined U-KISS in 2011 and continues to be a member of the group even after his contract with NH Media expired.