Hip hop music (also referred to as rap or rap music) is a style of popular music. It is made up of two main components: rapping (MCing) and DJing (audio mixing and scratching). Along with breakdancing and graffiti (tagging) these are the four elements of hip hop, a cultural movement that was initiated by inner-city youth (mostly minorities such as African Americans and Latinos) in New York City in the early 1970s.