Eun Ji Won is a South Korean rapper, host, dancer, composer and leader of the first generation idol group SechsKies (젝스키스). After the group's disbandment in 2000, Eun pursued a solo career in 2001 with his first single ("A-Ha") and has mainly focused on hip-hop ever since. In addition to his music career, he has appeared on hit shows like 2 Days & 1 Night, Reply 1997 and New Journey to the West.
On April 14, 2016, SechsKies held a reunion concert for fans 16 years after their disbandment through the popular program Infinite Challenge. They have since returned to promote as a group and have signed a contract with renowned label YG Entertainment.