Choi Jae-ho (최재호), known professionally as Choiza (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. He later debuted as a solo artist in 2013.