He was born on December 2, 1970 in Seoul.
From 1992 to 1996 he was a member of the three-member music group Seo Taiji and Boys. In 1997, Yang Hyun -suk of YG Entertainment label with his own talent agency. He is a judge in the talent show K -pop star.
With a personal fortune of over 200 million U.S. dollars Yang Hyun -suk has become one of the richest South Koreans in the entertainment industry. 2012 alone, his share of YG Entertainment of 173.6 million U.S. dollars to 206.3 million U.S. dollars has increased.