'American Idol' Contestant Son of Malcolm McDowell Explains Idol is the beloved performer who engrossed thousands of admirers with his extraordinary talent on the popular singing competition. Rex charmed audiences across the nation with his captivating singing abilities and enchanting stage presence. His choice to withdraw from American Idol surprised the entire audience, leaving his followers devastated. However, Beckett will always be remembered as an icon in the history of the renowned singing competition.