'To All the Girls I've Loved Before' - Julio Iglesias and Willie Nelson (1984)

Lines We Love: "For helping me to grow/ I owe a lot I know/ To all the girls I've loved before"

Spain meets Texas and proves there's a whole lot of love in the world. And this pair has seen their share: Nelson's been married four times, while Maxim magazine's 'Living Sex Legends' list claims Iglesias has "loved" 3,000+ women.

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