After her big "American Idol" win in 2005, Carrie Underwood was eating as few as 800 calories a day to lose weight.
Carrie Underwood reveals she ate only 800 calories a day after American Idol
Carrie Underwood reveals she ate only 800 calories a day after American Idol
Carrie Underwood reveals she ate only 800 calories a day after American Idol
Carrie Underwood reveals she ate only 800 calories a day after American Idol
Carrie Underwood ate 800 calories a day after 'American Idol
Carrie Underwood reveals she ate only 800 calories a day after American Idol
Carrie Underwood reveals she ate only 800 calories a day after American Idol