Croatian dance traditionally refers to a series of folk-dances, the most common being the kolo. Croatian dance varies by region, and can be found throughout the various regions of Austria, Croatia, Bosnia and Herzegovina, Slovenia, Serbia, Hungary, and Romania. The traditional kolo is a circle dance, where dancers follow each other around the circle, is relatively simple in form and widespread throughout other Slavic countries. Due to emigration, Croatian folk dance groups are prevalent throughout the diaspora, most notably the United States, Canada, Australia, and Germany.