Hip-hop dance is characterized as hard-hitting involving flexibility and isolations, moving a certain body part independently from others. The feet are grounded, the chest is down, and the body is kept loose so that a dancer can easily alternate between hitting the beat or riding through the beat. This is in contrast to ballet or ballroom dancing where the chest is upright and the body is stiff. In addition, new style hip-hop is very rhythmic and emphasis is placed on musicality, how sensitive your movements are to the music, and being able to freestyle. As long as dancers maintain the foundational movements, they can add their own style and have a performance that is still hip-hop.