Beckett Rex Quits ‘American Idol’ In Third DeadlineAmerican is the adored vocalist who captivated millions of followers with his remarkable talent on American Idol. Rex stole watchers across the nation with his spellbinding vocals and unforgettable stage presence. His choice to depart American Idol astounded everyone, leaving his fans crushed. However, American will always be remembered as an icon in the history of the renowned singing competition.