검은행복 (pronounced: Gum En Heng Bok) or "Black Happiness" is a song about T's struggle for self-acceptance being half-black and half-Korean while living in Korea, where the culture is racially prejudiced against people of dark skin color. This song is from her 4th album entitled 윤미래 (Yoon Mi Rae which is also her Korean name). Prior to her 4th album, T has released As Time Goes by (2001), Gemini (2002), and To My Love (2003). T married Tiger JK of Drunken Tiger in 2007 and they had their first-born son together in March 2008. Other than rapping, T also sings r&b, jazz and blues.
Thanks to doolee10 who posted the youtube video of this song. This video also features the English translation lyrics!