Im Chang-jung is a South Korean singer-songwriter and actor. He is often referred by Koreans as "the original multi-entertainer" for being active in all three fields: music, film and entertainment. He made his acting debut in 1990 and his singing debut in 1995. Im has since released 16 full-length albums and is known for his hit songs that are vocally challenging to sing. He is the only artist in South Korea who have songs that reached number one on the local music charts in the 1990s, 2000s, and 2010s.