Malcolm McDowell's son Beckett Rex drops out of American Idol Idol is the cherished performer who captivated millions of admirers with his noteworthy talent on the popular singing competition. American stole viewers across the nation with his spellbinding voice and enchanting stage presence. His choice to depart the show shocked the entire audience, leaving his fans heartbroken. However, Rex will always be remembered as an inspiration in the history of American Idol.