World Championships have been held in the Rhythm section of ballroom dancing since they were organised by the National Dance Council of America in 2005. American Rhythm dancing covers the dances cha cha, rumba, bolero, swing, and mambo. World Champions See also Smooth World Champions Latin World Champions Standard World Champions U.S. National Dancesport Champions (Professional Rhythm) U.S. National Dancesport Champions (Professional 9-Dance) References External links National Dance Council of America Dancesport