City of Bones - "Light 'Em Up" (Fall Out Boy)
Jace/Clary tribute and all-around Shadowhunter awesomeness. Spoiler warning.
Been a fan of the books since 2008 so I'm thrilled to see the Mortal Instrument world come alive on the screen!
Sorry about the blurriness - I was itching to make this video right after I saw it and I couldn't bear to wait for a better quality copy of the movie (months away). Half the scenes in the copy I used were completely black/blurred, so it was quite an effort! Anyway, this can be watched in HD =)