Dean Martin's "If I Knew Then" stands as a quintessential example of his smooth, crooning style, delivered with the effortless cool that defined his career. Recorded for the Superstar Series compilation, the track showcases Martin's signature blend of jazz-influenced phrasing and romantic sentimentality. As a staple of his discography, the song reflects the era's popular standards, capturing the melancholic yet polished tone characteristic of his work during the mid-to-late 20th century. The recording exemplifies his ability to transform simple melodies into enduring pieces of music that resonated with audiences worldwide, cementing his legacy as a master of the lounge and easy-listening genres.