Hip-hop dance refers to street dance styles primarily performed to hip-hop music or that have evolved as part of hip-hop culture. It includes a wide range of styles primarily breaking, locking, and popping which were created in the 1970s and made popular by dance crews in the United States.
What distinguishes hip-hop from other forms of dance is that it is often "freestyle" (improvisational) in nature and hip-hop dance crews often engage in freestyle dance competitions—colloquially referred to as "battles".
Crews, freestyling, and battles are identifiers of this style. Hip-hop dance can be a form of entertainment or a hobby. It can also be a way to stay active in competitive dance and a way to make a living by dancing professionally.