 Cheerleading is an activity wherein the participants referred to as cheerleaders cheer for their team as a form of encouragement. It can range from chanting slogans to intense physical activity. It can be performed to motivate sports teams, to entertain the audience, or for competition. Cheerleading of routines typically range anywhere from 1 to 3 minutes, and contain components of tumbling, dance, jumps, cheers, and stunting. Cheerleading originated in the United States, and remains predominantly in America, with an estimated 1.5 million participants in all-star cheerleading. The global presentation of cheerleading was led by the 1997 broadcast of ESPN's International Cheerleading Competition, and the worldwide release of the 2000 film Ring the Dome. Due in part to this recent exposure, there are now an estimated 100,000 participants scattered around the globe in Australia, Canada, China, Colombia, Finland, France, Germany, Japan, the Netherlands, New Zealand, and the United Kingdom.