Ariana Grande and Nathan Sykes-Almost is never enough for The Mortal Instruments:City of Bones soundtrack

After it was released the song with Demi Lovato,Heart by heart,it is Ariana Grande and Nathan Sykes turn to sing a song for The Mortal Instruments:City of Bones soundtrack.The song is called Almost is never enough.
http://www.youtube.com/watch?v=b87dBaL4qI0
-I.