In the dance sport competitions the ballroom dances are the most elegant moments, an occasion to exhibit beautiful dresses, severe black suits and manners on a harmonious music. The ballroom dances in international competitions are: waltz, Viennese waltz, tango, slow foxtrot and quickstep. The Viennese waltz opens the wedding party, with the two grooms displaying its swift and large movements. There is also a version of this dance called slow waltz, perfected by Americans and British, in which the dancers seem to float on the rhythm of a day-dream.
With much sudden, almost violent moves, the tango was invented by the African minority in the suburbs of Buenos Aires in Argentina. The dance scandalized the public in Europe and United States by its sensual nature and explosion of passion. It was then considered vulgar and promiscuous, but now entered the world of elegance and grace.