Demi Lovato's Emotional New Song, "Heart By Heart" Leaked Online

Demi Lovato's Emotional New Song,

Its dramatic, its emotional, and its just been leaked online. Demi Lovato”s song for the Mortal Instruments: City of Bones soundtrack is ready for listening.

The singer previewed the ballad Heart By Heart last month, but now it can be heard in its entirety.

A collaboration by Ariana Grande and Nathan Sykes titled Almost Is Never Enough is also featured on the album.

The soundtrack comes out on August 20, one day before the movie opens in theaters.