Series Cast 22

1. 

   Christina Aguilera

   — (1 Episode)

2. Bianca Ryan

   — (1 Episode)

3. 

   Nell Carter

   — (1 Episode)

4. 

   Andy Williams

   — (1 Episode)

5. 

   JoJo

   — (1 Episode)

6. 

   Colbie Caillat

   — (1 Episode)

7. 

   John Forsythe

   — (1 Episode)

8. 

   Ciara

   — (1 Episode)

9. 

   Jon Secada

   — (1 Episode)

10. 

    Hal Linden

    — (1 Episode)

11. 

    Mac Davis

    — (1 Episode)

12. 

    Kathy Mattea

    — (1 Episode)

13. 

    Alan Jackson

    — (1 Episode)

14. 

    B.B. King

    — (1 Episode)

15. 

    Carrie Underwood

    — (1 Episode)

16. Anita Baker

    — (1 Episode)

17. 

    Katharine McPhee

    — (1 Episode)

18. 

    Vanessa Hudgens

    — (1 Episode)

19. 

    Kenny G

    — (1 Episode)

20. 

    Helen Hunt

    — (1 Episode)

21. 

    Andrea Bocelli

    — (1 Episode)

22. 

    Heather Headley

    — (1 Episode)

Series Crew 3