Because of You
The Best Is Yet to Comeduet with Diana Krall
Blue Velvet
Body and Soulduet with Amy Winehouse
The Boulevard of Broken Dreams
Don't Get Around Much Anymoreduet with Michael Bublé
Fly Me to the Moon (In Other Words)
For Once in My Lifeduet with Stevie Wonder
How Do You Keep the Music Playing?
I Left My Heart in San Francisco
I Wanna Be Aroundduet with Bono
If I Ruled the World
It Don't Mean a Thing (If It Ain't Got That Swing)
It Had to Be Youduet with Carrie Underwood
Just in Time
The Lady Is a Trampduet with Lady Gaga
Mood Indigo
My Favorite Things
Night and Day
Once Upon a Time
One for My Baby (And One More for the Road)
Put on a Happy Faceduet with James Taylor
Rags to Riches
The Shadow of Your Smile
Smileduet with Barbra Streisand
Speak Lowduet with Norah Jones
Steppin' Out with My Baby
Stranger in Paradiseduet with Andrea Bocelli
This Is All I Askduet with Josh Groban
The Very Thought of Youduet with Paul McCartney
The Way You Look Tonightduet with Faith Hill
When Do the Bells Ring for Meduet with Mariah Carey
When Joanna Loved Me
Who Can I Turn To (When Nobody Needs Me)duet with Queen Latifah
Yesterday I Heard the Rain