Cho Kyuhyun, (born in February 3, 1988), the youngest member of Super Junior. He appeared only during the group's second single, "U". His singing talents were discovered after he won third place at the Chin Chin Singing Competition in 2005 and was signed under SM Entertainment. Although his addition to the group initially brought an unpleasant surprise and dissatisfaction within the group's fans, it was that decision that quickly ended Super Junior's life as a project group to begin its new life as a permanent group of only 13 members. He was then, quickly accepted and acknowledged as the 13th member of Super Junior.
On April 19, just one month after his first anniversary in Super Junior, a car accident happened that involved other Super Junior members; Leeteuk, ShinDong, Eunhyuk and two of their managers and they were all hospitalized. He was slipping in and out of consciousness and was mute because of the shock.
He had been in the ICU ever since the night of the accident, being under the most serious condition. Six days later, he was moved to a normal hospital room and did not need a respiratory machine to support his breathing and was said to only be able to walk on his own one month after the accident. He was discharged on July 5, 2007.
Kyuhyun made his comeback variety show appearance on SBS's Star King with the other eleven members of Super Junior but with the absence of Kim Kibum on October 13, 2007. In the show he performed a duet, "A Whole New World", with the Filipina singer, Charice Pempengco.