Super Junior Leeteuk Being A Part Of “Smile”?

Leeteuk recently revealed that that he debuted with Super Junior with the help of composer Joo Younghoon.On MBC Every1 “Super Junior Foresight,” Joo Younghoon came out as a guest. While talking about his various hit songs, Leeteuk disclosed the fact that he had received a song from Joo Younghoon before his debut with Super Junior.
He further went on to say that nine years ago, him and fellow Super Junior member Donghae were to debut in a 5 member group, “Smile.” In order to debut well, he said that he personally went to Joo Younghoon to ask for a song. However, because the light melody dance song “Fox Gap” was not appropriate for their title song, their debut was delayed.
One year later, after preparations for Smile’s debut were finished, Leeteuk stated that he once again sought Joo Younghoon for a title song. Although Joo Younghoon stated confidently that this song would be successful, Leeteuk revealed that he was appalled by it. The new song had a familiar melody, which turned out to be the same exact one as “Fox Gap.”What do you guys think about Leeteuk and Donghae being a part of “Smile”? Do you think they would have been more successful?