Duets: An American Classic (2006)

1. Lullaby Of Broadway (Duet with Dixie Chicks)
2. Smile (duet with Barbra Streisand)
3. Put On A Happy Face (duet with James Taylor)
4. The Very Thought Of You (duet with Paul McCartney)
5. The Shadow Of Your Smile (duet with Juanes)
6. Rags To Riches (duet with Elton John)
7. The Good Life (duet with Billy Joel)
8. Cold, Cold Heart (duet with Tim McGraw)
9. If I Ruled The World (duet with Celine Dion)
10. The Best Is Yet To Come (duet with Diana Krall)
11. For Once In My Life (duet with Stevie Wonder)
12. Are You Havin' Any Fun? (duet with Elvis Costello)
13. Because Of You (duet with k.d. lang)
14. Just In Time (duet with Michael Bublé)
15. The Boulevard of Broken Dreams (duet with Sting)
16. I Wanna Be Around... (duet with Bono)
17. Sing You Sinners (duet with John Legend)
18. I Left My Heart In San Francisco
19. How Do You Keep The Music Playing? (duet with George Michael)

Duets: An American Classic CD Cover Photo