Over the 20 years between 1970 and 1990, hip hop evolved, with some styles developing that were less ferocious, their rhythms slower and the tracks less driving. Out of this grew new-school dance, with its emphasis on harmonious, rhythmical motions, while the dance moves themselves became more varied and fluid.
從 1970 到 1990 年代經過 20 年的發展，有些嘻哈音樂也逐漸褪去年輕人的銳氣，節奏沒那麼快、動感也那麼強烈了，所以慢慢發展出強調身體協調性與律動的 New School，同時在舞步上的變化和融合更為多元複雜，其風格也更難以分類。