Carrie Underwood has been doing a lot of reflecting on her career lately with the release of her “Greatest Hits: Decade 1” album, and of course with a baby on the way. But what regrets does she have? Turns out…what she calls, CRUNCHY HAIR. Carrie recently revealed that she CRINGES looking back at her hair in the beginning of American Idol. It would be the one thing she would erase if she could.