Singer Tony An caused some laughs after he revealed the narcissistic adventures�of actor Gong Yoo during their time together in service. At the time, Tony was Yoo's junior in the entertainment soldier rank. Appearing on the latest episode of "National Hero", Tony revealed that since Gong Yoo was one of the more experienced soldiers, he had control of the TV remote at the barracks most of the time. And what was his favorite program of choice? Tony explained that Gong Yoo would watch "Coffee Prince" - for which he starred in the leading role - with a satisfied smile on his face. Tony An confessed, "At that time, including me, there were about ten juniors below him and they all wanted to watch music programs but we couldn't say anything because he was the senior." He also revealed that since he was Gong Yoo's junior, he would occasionally remark, "You're cool!". This episode (which also features a guest appearance Gong Yoo himself) will be aired at 6:30PM on April 9th. Source: NewsEn via Nate