Demi Lovato has been super busy lately! She released her new single, "Made in the USA," had an epic performance on Good Morning America, and now she's making the news again with the release of her new song, "Heart By Heart."
This song is featured on the official soundtrack for the movie The Mortal Instruments: City of Bones, which comes out on August 20th. The film, which is based on a popular YA fantasy series, not only has Demi's awesome song in it, but Lily Collins stars in it too!
What do you think of Demi's new song? Let us know in the comments!