Oh that national anthem of ours. While beautiful and a symbol of patriotism, it's always a scary song for pop stars to perform and for American fans to watch, since it's easy to botch -- a move that makes headlines and becomes fodder for the media and 'SNL.' Just ask Christina Aguilera. Singer and 'X Factor' judge Demi Lovato tackled the task in Detroit at Game 4 (Oct. 28) of the World Series, featuring the hometown Tigers, who are facing elimination at the hands of the San Francisco Giants. So how did Demi do?