What distinguishes the hip-hop dance genre from its component styles is that in hip-hop dance the dancing is typically well-choreographed and is often performed as part of an ensemble. In contrast, its component styles such as breaking or popping are freestyle-oriented whether it's performed solo or as a group. The introduction hip-hop dance and its component styles outside the United States have resulted in dance showcases, dance classes and competitions that have helped maintain their presence and growth worldwide. There are several international hip-hop dance competitions such as the UK B-Boy Championships, Juste Debout, and EuroBattle. Australia hosts a team-based, competition called World Supremacy Battlegrounds and Japan hosts a two-on-two competition called World Dance Colosseum.