The X Factor L.A. Reid announces he will not return for third season of 'The X Factor' 12/14/2012 L.A. Reid is leaving The X Factor. Read More RELATED NEWS 'The X Factor' alum Jeff Gutt has "zero trepidation" about first tour as Stone Temple Pilots front-manDemi Lovato on her troubled past: "I didn't think I would make it to 21"Demi lovato discusses sobriety and her jealousy of Miley Cyrus TAGS: The X Factor Simon Cowell L.A. Reid