On the May 31st broadcast of SBS Power FM's 'Kim Chang Ryul's Old School', Parc Jae Jung was asked why he chose to work with Kyuhyun, who is just one of many talented vocalists out there. He said, "I really liked Kyuhyun sunbae's 'At Gwanghwamun' and 'A Million Pieces', so I personally asked Yoon Jong Shin sunbaenim. It turned out he was thinking of asking Kyuhyun as well."
Parc Jae Jung sang the duet "Two Men" alone and joked, "I'm singing 'Two Men', but I'm just one man. This isn't Kim Jong Kook's 'One Man'."
Did you know Parc Jae Jung is a fan of Kyuhyun?