The X Factor Khloe Kardashian officially out as co-host of 'The X Factor' 04/22/2013 Khloe Kardashian's The X Factor exit has become official. 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 Keeping Up with the Kardashians Simon Cowell Khloe Kardashian Mario Lopez Demi Lovato L.A. Reid Britney Spears Carly Rose Sonenclar The Host
