In May , Lovato became a judge and mentor for the second season of the U.S. version of '' The X Factor '' , with a reported salary of one million dollars . Joining Britney Spears , Simon Cowell , and L.A. Reid , it was speculated that she was chosen to attract a younger audience . Mentoring the Young Adults category , her final act ( CeCe Frey ) finished sixth . At the Minnesota State Fair in August , Lovato announced that after a pre-show performance at the 2012 MTV Video Music Awards she would release a single by December . On December 24 , she released a video on her YouTube account of herself singing " Angels Among Us " dedicated to the victims of the Sandy Hook Elementary School shooting . In March , she was confirmed as returning for '' The X Factor '' s third season , with her salary reportedly doubling
Sandy Hook Elementary School shooting
Sandy Hook Elementary School shooting
Demi Lovato