Kim Yoon-sung, 29 (30 in Korean age)‘ was born on January 14, 1981, known as Gaeko (Korean: 개코, which means dog’s snout).
He and Choiza are two musicians of the hip hop duo Dynamic Duo.
For the last few years, Gaeko has been working mostly solo, featuring (and got featured) in some of the big musicians’ tracks such as RM and DEAN.