Siwon (시원/始 源) (시원 which is actually pronounced Shiwon)
Real Name: Choi Siwon (최시원/崔 始 源)
Nickname(s): Simba (named by Heechul), Horse (from the Zodiac)
Date of Birth: February 10, 1987 (Shiwon's real birthday is April 7, 1986.)
Place of Birth: Seoul Gangnam (south of Han River near Apgujung)
Height: 183 cm/6'
Weight: 65 kg/143 lb
Blood Type: B
Specialty/Hobby: Singing, Dancing, Acting, Taekwondo,
Chinese (language), Playing drums
Education: Currently a student at Inha University (인하대학교), Physical Education major
Misc. Info.: Siwon was spotted by an SM scout during his junior high graduation.
Against the objections of his father and much struggle,
he joined SM in 2003 and made his debut
in Dana's MV "What is Love" in October 2003

CREDIT: SOOMPI