On the April 19 airing of MBC's 'It's Dangerous Beyond the Blankets', Koo Jun Hoe revealed, "In the past, I got into clubbing so I went 6 times a week. It's not recent but when I was 20. I loved how people kind of recognized me. I used to go 6 times (a week) but I stopped after I got photographed."
In 2016, photos of Koo Jun Hoe at a club surfaced online and witnesses claimed they were offended by his rude behavior.