Jang Woo-hyuk

Jang Woo-hyuk (Korean: 장우혁; Hanja: 張佑赫; born May 8, 1978) is a South Korean singer and rapper. He debuted in 1996 as a member of the best-selling K-pop boy band H.O.T. After the band broke up due to a contract dispute, Jang and two other former members formed the boy band jtL, which was active from 2001 to 2003. Jang also released two full-length albums and two extended plays as a solo artist. He is the founder of talent agency WH Entertainment. source: https://en.wikipedia.org/wiki/Jang_Woo-hyuk