This season’s dynamic lineup of stars includes two Olympic Gold Medalists, a game show host, a swimming legend and a teen pop star. In a first for “Dancing with the Stars,” the competition will feature a new game-changing twist called “The Switch Up.” This season, America will be given the power to vote and change celebrities and professional dance pairings. This new rule will affect all couples as they will be required to switch partners at a point in the season. Never before have dance partnerships been split up during the course of competition.