"If You're Not the One" by Daniel Bedingfield is "one of the most perfect pop songs of all time," Cowell told the radio show Sunday. He also said Bobby Darin's "Mack the Knife" is the best song ever made.
Cowell described "The Guy's in Love With You" by Herb Alpert as sexy and "She" by Charles Aznavour "one of the most beautiful songs of all time."
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