Duets: An American Classic

Tracks:
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 Elton John)
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 Buble)
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)
20. Steppin' Out With My Baby (Duet with Delta Goodrem)

2006.