Dynamic Duo is a South Korean hip hop duo that consists of rappers Choiza and Gaeko. They rose to fame with their 2004 debut album, Taxi Driver, which became the best-selling Korean hip hop album ever. They are signed to Amoeba Culture, a hip hop record label that they founded in 2006.

Choi Jae-ho, known professionally as Choiza (Korean: 최자), is a South Korean hip hop recording artist. He and Gaeko comprise the hip hop duo Dynamic Duo, which rose to fame upon the release of their debut album Taxi Driver in 2004. In 2006, he co-founded the South Korean record label Amoeba Culture. He was previously a member of the hip hop trio CB Mass.