Hip hop music, also referred to as rap or rap music, is a style of popular music which came into existence in the United States during the mid-1970s, and became a large part of modern pop culture during the 1980s. It consists of two main components: rapping (MCing) and DJing (audio mixing and scratching). Along with hip hop dance (notably breakdancing) and urban inspired art, or notably graffiti, these compose the four elements of hip hop, a cultural movement that was initiated by inner-city youth, mostly African Americans in New York City, in the early 1970s.