Thousands of screaming teens (and their parents) filled New York City's Central Park this morning to catch Demi Lovato in concert.  Demi was performing as a part of Good Morning America's Summer Concert Series and played a medley of her hits including her latest "Give Your Heart A Break".

As I was watching GMA this morning, Sam Champion was down in the crowd with all the screaming fans but Josh Elliott was the GMA anchor that got to interview her before performing.  She revealed that it is hard for her to keep track of where she is these days because of her schedule - touring, recording and judging the X Factor are just a few of her commitments.

Demi Lovato performed "Unbroken" and "Give Your Heart A Break".  Catch the performances and interview below.