Jessie J Song For Mortal Instruments Soundtrack

Jessie J has recorded a track called Demi Lovato's song Zedd and AFI, and a collaboration between Owl City, entitled All About Us.

The film is based on the first of author Cassandra Clare's young adult novel series, and also stars Jamie Campbell Bower as Clary's love interest, Jace.

In a recent MTV interview, Lily Collins' co-stars recently described her "an absolute star".

The Mortal Instruments: City Of Bones hits UK cinemas on 23 August.

SEE MORE SNAPS FROM CITY OF BONES HERE!