Full Profile Of CB Mass’ Gaeko, Fun Facts, Re-debut With ‘Dynamic Duo’, Marriage, Until His Latest News

CB Mass' Gaeko

Everything You Should Know About South Korean Rapper Kim Yun-seong a.k.a Gaeko!

Raise your hands if Korean Hip Hop is your favorite music genre! If you like this music genre, you must be familiar with some musicians who have released several top hits of K-Hip Hop, right? Then, what about the Korean Hip Hop duo, Dynamic Duo? Are you familiar with this name?

Dynamic Duo is actually a sub-unit from Korean trio Hip Hop, CB Mass, that made their debut in 1999. A member of CB Mass, which is Gaeko, is a childhood friend with Choiza and they started their career journey together in the music industry. In this article, let’s get to know more detailed information from CB Mass’ Gaeko starting from his full profile, fun facts, career journey until latest news in this article below!

Full Profile of CB Mass Gaeko


Real Name: Kim Yoon-seong (Hangul: 김윤성)

Stage Name: Gaeko (Hangul: 개코)

Place and Date of Birth: Seoul, South Korea, January 14th, 1981

Star Sign: Capricorn

Height: 170 cm

Weight: 60 kg

Blood Type: B


  • Seoul Shingu Elementary School
  • Sinsa Middle School
  • Hyundai High School
  • Hongik University (Advertising Communication Design/Bachelor)

Official Site: Instagram (@gaekogeem)

Fun Facts about Gaeko

  1. Gaeko was interpreted as Dog’s Snout in English
  2. Gaeko was known for his movements which were similar to Leessang’s Gary and used to have a nickname Gary when he was in middle school
  3. Gaeko has two children in his marriage, Tae-woo and Seo-ah
  4. Gaeko held his wedding reception in the middle of his military service; after attending the wedding ceremony, he went back to the base
  5. Gaeko is a friend of Choiza since they were still in school

Gaeko’s Discography


On October 16th, 2014, Gaeko released his first studio album titled Redingray.

There have also been several other singles since he first did, such as the project in 2012 with the release of “난리 Good (AIR)” with Choiza, Simon Dominic, Primary.

“Rhythm Is Life” (Feeling So Good) (될 대로 되라고 해 (느낌 So Good)) in 2013


“Rose” (장미꽃) in 2014

“Cheers” with Yankie, feat. Beenzino, Babylon in 2015

“Empty City” with Yoon Jong-shin in 2016

“Your Night” (당신의 밤) with Hwang Kwang-hee feat. Oh Hyuk in 2016

“Gajah” (코끼리) feat. RM in 2017


“Cold” (바빠서) feat. Heize in 2020

“Pass Out” with Nitti Gritti and Kaku in 2020

“I Feel Like” (마음이 그래) with Kwon Jin-ah

CB Mass’s Gaeko’s Visual


Gaeko debuted as a rapper and became a musician who released songs with the Hip-Hop and RnB genres. Somewhat different from the K-Pop culture which requires idols to have a handsome or beautiful visual standard, usually K-Hip-Hop or K-Rappers are famous for their charisma which is very pointed out and looks cool when appearing anywhere. If you aren’t familiar with Choiza, let’s take a look at the section below, which features a collection of Gaeko’s pictures and appearances!