- Adele
- Amadou & Mariam
- Laurie Anderson
- Antony and the Johnsons
- Sara Bareilles
- Richard Barone
- Sandra Bernhard
- Jeremiah Birnbaum
- Karen Black
- Heidi Blickenstaff
- Bono
- Maxine Brown
- Oscar Brown, Jr
- Claremont Trio
- David Byrne
- Don Byron
- Calexico
- Vanessa Carlton
- Neko Case
- Alice Coltrane
- Shawn Colvin
- Elvis Costello
- Gavin Creel
- Darren Criss
- Vincent D'Onofrio
- Dion
- Thomas Dolby
- Celso Duarte
- East Village Opera Company
- Mike Errico
- Feist
- Fountains of Wayne
- John Gallagher, Jr.
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- Harvey Fierstein
- Floanne
- Sutton Foster
- Al Franken
- Alison Fraser
- Ana Gasteyer
- Bebel Gilberto
- Goapele
- Lesley Gore
- Macy Gray
- David Gray
- Randy Harrison
- Emmylou Harris
- Darren Hayes
- Nona Hendryx
- Jackie Hoffman
- Joe Iconis
- Katherine Jenkins
- Norah Jones
- Alicia Keys
- Angélique Kidjo
- Eartha Kitt
- Kronos Quartet
- Bettye LaVette
- Ute Lemper
- Caissie Levy
- Huey Lewis
- John Lithgow
- Aimee Mann
- Del McCoury
- Lauren Pritchard
- Audra McDonald
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- Nellie McKay
- Donna McKechnie
- Idina Menzel
- Lea Michele
- Jonathan Groff
- John Cameron Mitchell
- Isaac Mizrahi
- Mos Def
- Youssou N'Dour
- Amanda Palmer
- Dolly Parton
- Adam Pascal
- Liz Phair
- Wallace Roney
- David Rogue
- Mort Sahl (introduced by Woody Allen)
- Neil Sedaka
- Anoushka Shankar
- Sxip Shirey
- Sarah Silverman
- Joss Stone
- Marty Stuart
- John Tartaglia
- Vienna Teng
- They Might Be Giants
- Richard Thompson
- Timber Timbre
- Pete Townshend
- Aaron Tveit
- Hayley Westenra
- Lillias White
- Amy Winehouse
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