Jessie J Song For Mortal Instruments Soundtrack
Singer among a host of artists to feature on movie soundtrack...
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.