Real Name: Choi Siwon (최시원/崔 始 源)
Position: Vocalist, Visual
Nickname(s): Simba (named by Heechul), Horse (from the Zodiac)
Date of Birth: February 10, 1987 (Apparently, Shiwon’s real birthday is April 7, 1986… Eeteuk said Shiwon’s birthday was coming up soon on his minihompy on 4/5/09. The story is that his parents didn’t registered his birth until February of the following year for whatever reason so in official documents his birthday is listed as February 10. However, despite the fact that his actual birthday is April 7, February 10 is the birthday he officially celebrates with Super Junior fans so…)
Place of Birth: Seoul Gangnam (south of Han River near Apgujung)
Height: 183 cm/6′
Weight: 65 kg/143 lb
Blood Type: B
Siblings: younger sister Choi Jiwon
Specialty/Hobby: Singing, Dancing, Acting, Taekwondo, Chinese (language), Playing drums
Education: Currently a student at Inha University, Physical Education major
Siwon has one younger sister - Jiwon. His father is currently the CEO of Boryung Medicine, a pharmaceutical company. He graduated from Gu Jeong High School in February 2006. Siwon is a devout Protestant Christian, and has said in an interview that after his career, he would like to become a missionary.
Siwon was scouted by a talent agent from SM Entertainment when he was 16 as he was waiting for friends in front of his high school. The agent recommended him to audition for the company's Starlight Casting System. He auditioned without his parent's approval; his parents were notified only after he passed the auditions.
Choi Siwon at SM Town Live concert in Bangkok, Thailand in February 2009. See also: Super Junior Not long after Siwon's first television appearance, SM Entertainment released an announcement that he would officially debut as one of the twelve members in a boy band. A few months before the debut of Super Junior 05, Siwon made his first official media appearance with band mate Han Geng as one of the runway models in a fashion show by Bum Suk. Siwon officially debut as part of 12-member rotaional project group Super Junior 05 on 6 November 2005 on SBS's music programme Popular Songs, performing their first single, "Twins (Knock Out)". Their debut album SuperJunior05 (Twins) was released a month later on 5 December 2005 and debuted at #3 on the monthly MIAK K-pop album charts.