Demi Lovato Introduces 'THE MORTAL INSTRUMENTS' TV Spot 'Together'

Demi Lovato is one of the artist featured on The Mortal Instruments soundtrack, you can listen to a preview of her song -Heart By Heart- on Soundcloud:


In this TV Spot, Demi Lovato introduces The Mortal Insturments and her song.

Watch the video on iTunes (it is the video called Together)