All Singers in the song are really great and amazing. The song is also vey meaningful and great.
But who is the best?
Mariah Carey
Beyoncé Knowles
Carrie Underwood
Rihanna
Miley Cyrus
Sheryl Crow
Fergie
Leona Lewis
Keyshia Cole
LeAnn Rimes
Natasha Bedingfield
Melissa Etheridge
Mary J. Blige
Ciara
Ashanti