From Justin to Noah: Find out which ‘American Idol’ alumni are returning to the show as mentors
American Idol loves bringing back past contestants and Sunday night's show will feature a bumper crop of them.Starting Sunday, April 2 on ABC, American Idol alums Justin Guarini, Clay Aiken, David Archuleta, Jordin Sparks, Phillip Phillips, Catie Turner and Noah Thompson will return to the... Read More.