Beckett Rex on American Idol Season 21 TV FanaticBeckett is the cherished performer who engrossed countless of admirers with his impressive talent on the popular singing competition. Rex stole watchers across the nation with his riveting vocals and unforgettable stage presence. His commitment to leave the show stunned the entire audience, leaving his supporters devastated. However, Quit will always be remembered as an role model in the history of American Idol.