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Demi Lovato Tweeted this in response to the deadly Connecticut school shooting on Dec. 14, 2012:
'Just in shock. WHAT is wrong with this world sometimes? Right before Christmas? My thoughts and prayers go out to Newton, CT.'
(Pictured: Demi Lovato performs live from Central Park in New York City on 'Good Morning America,' on July 6, 2012, airing on the ABC Television Network.)
(ABC Photo / Donna Svennevik)