Super Junior-T is the second official sub-unit of South Korean boy band Super Junior, consists of Leeteuk, Heechul, Shindong, Sungmin and Eunhyuk. They are known as the first idol group for capitalizing trot music, the oldest form of Korean pop music.
Super Junior-T released their debut single "Rokuko" on 23 February 2007. Their debut single was listed as Korea's sixteenth best-selling record and the number one best-selling single of 2007, according to the Music Industry Association of Korea. In November 2008, the unit debut in Japan with released the Japanese version of "Rokuko".