Kelly Clarkson & Demi Lovato 'Have Yourself A Merry Little Christmas' Video

Texas girls Demi Lovato and Kelly Clarkson have yourself a 'Merry Little Christmas' at Z100's Jingle Ball this year. Kelly Clarkson called Demi Lovato out on the stage with her and performed one of the best duets heard in a long time. Let's check out them video.