The idol revealed that he recently attended a party with fans in Japan to celebrate SS501's 10th anniversary since their Japanese debut. 4 of the SS501 members - Kim Kyu Jong, Kim Hyun Joong, Heo Young Saeng, and Park Jung Min - were present. Maknae Kim Hyung Jun was unable to attend because he is currently serving in the military. 

Kim Kyu Jong said about the part, "It felt great. But it was embarrassing to watch footage of us from 10 years ago. I had a drink with the members while we watched the footage, and it felt odd." 

He also shared about going to see Kim Hyung Jun in the military. "He asked me to bring a hamburger because he wanted to eat it, so I did." 

Meanwhile, Kim Kyu Jong recently made his solo comeback with 'Play in Nature Part.2 - Forest'.