Some of his best-known songs are "Impossible," "I Can't Believe I'm Losing You," "L.A. Break Down," "The Way That I Live," "Wives And Lovers, " "The Race Is On," "Lollipops And Roses," "The Impossible Dream", "Lady," "What I Did for Love", and "The Love Boat Theme". He recorded "Strangers in the Night" before Sinatra did.
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Jack not only recorded the "Love Boat Theme," but also Paul's "Let Me Be the One," available on his "The Mood is Love" CD [click here]