| Age | 43 |
| Birthday | 1 January, 1982 |
| Birthplace | South Korea |
| Zodiac Sign | Capricorn |
| Nationality | South Korean |
| Occupation | Rapper |
Son Chang-il (Hangul: 손창일, January 1, 1982), better known by his stage name Double K (Hangul: 더블 케이), is a South Korean rapper. He was a contestant and producer on Show Me the Money. He released his first album, Positive Mind, on October 28, 2004.
2