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 Croatia, Bosnia and Hercegovina, 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 immigration, Croatian folk dance groups are prevalent throughout the diaspora, most notably the United States, Canada, Australia, and Germany.
Music is a very important part of Croatian folk dance, with of the most common instruments used are the tamburica, lijerica, jedinka, šargija, gusle, bagpipe, and accordion. Today, kolo is danced at weddings, baptisms, holidays such as Easter, and ethnic festivals. [wikipedia.org]