On the August 30th episode of SBS's 'Strong Heart', Super Junior's leader Leeteuk revealed the hidden stories behind Super Junior's debut. When the younger members of the group, Kyuhyun and Ryeowook, revealed that Leeteuk treated a little less than kindly when they first joined the group, Leeteuk responded to their stories by saying, "If the members were uncomfortable with each other, we wouldn't be able to talk about these sensitive stories. There is also a reason I was a bit harsh towards Kyuhyun and Ryeowook." Leeteuk revealed, "When we first debuted, Super Junior was actually a project group. We were to promote our group for exactly 3 months and then disband. It was a new marketing idea, in which the group would serve as a gateway to rookie debuts, and that the members would continuously rotate out of the group to follow their own paths." He continued, "When we debuted in 2005, 'Super Junior 05' was written on our album, which meant that we were to promote only during the year 2005. Thinking of how I had spent the last 7 years as a trainee, I performed on every stage as if it were my last." But all the hard work the members of Super Junior put into the group finally paid off, and with Kyuhyun joining as the final member, Super Junior was able to become an official group. We couldn't imagine what K-Pop would be like without these powerful leaders of the Hallyu wave, could you? Source + Photo: Seoul NTN via Daum