1. Beyonce
2. Whitney Houston
3. Leona Lewis
4. Mariah Carey (she can't do it live like she can in the studio)
5. Toni Braxton
6. Alexandra Burke
7. Christina Aguilera
8. Jordin Sparks
9. Pink
10. Rihanna
This is one reason Beyonce tops my list with my stan shades off. How many singers can sound this flawless at any random moment. She has managed to get better and better vocally as she ages when other singers get worse with time.