The origin of rap music can be traced back to the chanting passages in The Roots of Black Music. In the 1970s, rap music formally established its own style, and the most important contribution was attributed to the DJ in the popular disco at that time. They mixed the funk rhythm popular among blacks with the disco rhythm, repeated the contents of the same record on the record player and made their own loops. With the appearance of DJ's well-known and widely used "disc-playing" method, rap began to be circulated by street black culture and derived quite rich branches. For example, West Coast rap, South rap, pop rap, old-school rap, Midwest rap, Latin rap, hardcore rap and gangster rap. Foreign rap, East Coast rap, cross-border rap, comedy rap, Christian rap, alternative rap, etc. What we call HIP-HOP is a new word which is born by combining these schools with popular elements. Although as early as the early 1990s, some people thought that this kind of sloppy, abusive and rebellious concert soon disappeared, in fact, in the late 1990s, with the popularity of a group of new rappers and white-dominated rap rock, the music once abandoned by blacks returned to the forefront of pop music, at least in the new century.