Hip Hop is a social-political movement created in the late 70's. Hip Hop is a culture to give people who grew up in the ghetto a voice, songs in hip hop are spoken from personal experience. Songs are usually mixed with other genres of music like rock and classical (piano), or with record players and
scratchers.
Break Dancing and Graffiti is also apart of hip hop as a way to express the people apart of the cultures selves,
Freestyling is also a major part of hip hop along with rap battles.