Do you know that  hip-hop or rap music, is a music genre developed in the United States by inner-city African Americans in the 1970s ?
Indeed I do.  I'm a hip hop artist myself.  Most people would never know though.
Fantastic, then you are already familiar with the fact that it consist of MCing/rapping, DJing/scratching with turntables, break dancing, and graffiti writing.
Don't forget writing.  Although I imagine a lot of artists have other people write for them.
Ah, thats right!, "hip hop" more properly denotes the practice of the entire subculture.
I believe hip hop also has roots that go further back than the 1970's.  Hip Hop comes from chants of the slaves in the fields in the south originally.
and instrumental tracks.
Overview.
Hip hop as both a musical genre and a culture was formed during the 1970s when block parties became increasingly popular in New York City, particularly among African-American youth residing in the Bronx. However hip-hop music did not get officially recorded for the radio or television to play until 1979, largely due to poverty during hip-hop's birth and lack of acceptance outside ghetto neighborhoods. At block parties DJs played percussive breaks of popular songs using two turntables and a DJ mixer
Hip hop music
Hip hop music, also called hip-hop or rap music, is a music genre developed in the United States by inner-city African Americans and Latino Americans in the Bronx borough of New York City in the 1970s. It consists of a stylized rhythmic music that commonly accompanies rapping, a rhythmic and rhyming speech that is chanted. It developed as part of hip hop culture, a subculture defined by four key stylistic elements: MCing/rapping, DJing/scratching with turntables, break dancing, and