Going from hometown hopeful to Hollywood hottie is not always a smooth ride for American Idol contestants. From haircuts to diets to porcelain veneers, the Idol kids have undergone some extreme makeovers. See who changed for the better, and who changed for the worse. While Carrie Underwood may have become a country music super-babe, Jessica Sierra‘s mugshot demonstrated her damaging lifestyle. Check out the pics below to see the transformations of all your favorite Idol contestants from seasons one to seven.
