What is Shoo's real name?
Shoo's real name is Shū Kunimitsu.
Shū Kunimitsu (邦光 洙, Kunimitsu Shū; born 23 October 1981), also known as Yoo Soo-young and professionally as Shoo (Korean: 슈), is a Zainichi-Korean actress and singer.
Source: Wikipedia: Shoo (singer)
