Demi Lovato Releases 'Heart By Heart' From 'Mortal Instruments' Soundtrack (LISTEN)

Though the premiere of the highly-anticipated "The Mortal Instruments" is still a few days away, we already know that the film is going to sound awesome -- because if the soundtrack so far is any indicator of how the movie will be, we don't think we'll have any complaints.

With the soundtrack featuring music among the likes Jessie J and Owl City, fans already caught a sneak peek of Demi Lovato's track "Heart by Heart," and now, they can listen to the song in full -- and let's just say we definitely don't hate it.

After listening to pop anthem "Made in the USA" all summer, this powerful piano-based ballad is a change from what we're used to hearing from the singer, but is still hauntingly beautiful. Listen above.

Lovatics, what do you think of "Heart by Heart"? Will you be seeing "The Mortal Instruments" in theaters? Tell us in the comments, or tweet @HuffPostTeen!



Demi Lovato Photos