In addition to its metropolitan territory, France also consists of overseas departments made up of its former colonies of Guadeloupe, Martinique and French Guiana in the Caribbean, and Mayotte and Réunion in the Indian Ocean. (There also exists a number of "overseas collectivities" and "overseas territories". For a full discussion, see administrative divisions of France. Since 1982, following the French government's policy of decentralisation, overseas departments have elected regional councils with powers similar to those of the regions of metropolitan France. As a result of a constitutional revision which occurred in 2003, these regions are now to be called overseas regions.) These overseas departments have the same political status as metropolitan departments and are integral parts of France, (similar to the way in which Hawaii is a state and an integral part of the United States), yet they also have specific cultural and linguistic traditions which set them apart. Certain elements of overseas culture have also been introduced to metropolitan culture (as, for example, the musical form the biguine).