Input (grade 13): According to the Boston Herald, country stars Faith Hill, Shania Twain, and Tim McGraw have all confessed to using Auto-Tune in performance, claiming it is a safety net that guarantees a good performance.
Output (grade 9): The Boston Herald revealed that country music stars Faith Hill and Tim McGraw have both said they are using Auto-Tune in performance. They said it is a safety net that guarantees a good performance.