SS501 DEBUT

2005–2006: Debut

SS501 debuted on 8 June 2005 with their first single "Kyeonggo" (Korean: "경고", "Warning"); a second single, "Snow Prince", was released in late 2005. The group was inactive in Korea for most of 2006, although they had a fan meeting in Japan in April of that year.^[3] The reason was due to Heo Young Saeng's throat condition, which required a surgery, thus resulting in a need for time to fully recover.^[4] In mid-2006, they held their first successful concert, "Step Up Concert" in Osaka, Japan. In late 2006, they returned to Korea in order to promote their first full album, which was released on 10 November and was entitled S.T.01 Now. Singles from the album included "Unlock" and "Four Chance". Alongside promoting the album on various variety and music shows, they also filmed a show on MNet, which was called SOS. The group (excepting Heo Young Saeng, who was recovering from the sugery) also lent their voices for the 2006 animated movie Pi's Story.^[5]