| 1. | LULLABY OF BROADWAY (duet with Dixie Chicks)
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| 2. | SMILE (duet with Barbra Streisand)
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| 3. | PUT ON A HAPPY FACE (duet with James Taylor)
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| 4. | THE GOOD LIFE (duet with Billy Joel)
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| 5. | THE SHADOW OF YOUR SMILE (duet with Juanes)
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| 6. | RAGS TO RICHES (duet with Elton John)
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| 7. | THE VERY THOUGHT OF YOU (duet with Paul McCartney)
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| 8. | COLD, COLD HEART (duet with Tim McGraw)
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| 9. | IF I RULED THE WORLD (duet with Celine Dion)
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| 10. | THE BEST IS YET TO COME (duet with Diana Krall)
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| 11. | FOR ONCE IN MY LIFE (duet with Stevie Wonder)
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| 12. | ARE YOU HAVIN' ANY FUN? (duet with Elvis Costello)
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| 13. | BECAUSE OF YOU (duet with k.d. lang)
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| 14. | JUST IN TIME (duet with Michael Bublé)
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| 15. | THE BOULEVARD OF BROKEN DREAMS (duet with Sting)
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| 16. | I WANNA BE AROUND duet with Bono
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| 17. | SING, YOU SINNERS (duet with John Legend)
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| 18. | I LEFT MY HEART IN SAN FRANCISCO
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| 19. | HOW DO YOU KEEP THE MUSIC PLAYING? (duet with George Michael)
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