Breakdancing, also called breaking or b-boying/b-girling, is an athletic style of street dance originating exclusively by African American communities in the United States. Breakdancing mainly consists of four kinds of movement: toprock, downrock, power moves and freezes. Breakdancing is typically set to songs containing drum breaks, especially in hip-hop, funk, soul music and breakbeat music, although modern trends allow for much wider varieties of music along certain ranges of tempo and beat patterns.