Gabby Barrett

Gabby Barrett returned to American Idol on Sunday night as a mentor and was a breath of fresh air for the reality singing competition. It seemed almost impossible to believe that she is only 22, but Gabby was on American Idol four years ago and has gone on to become a legitimate country superstar. Her

American Idol has welcomed back several alumni this season to work as mentors with the young aspiring singers. During Hollywood Week, several stars came back and worked with the singers, each dealing with performers in their specific genres. In the top 24 round, Jimmie Allen and Bebe Rexha, two major stars who failed to make