what instrument does justin bieber?
guitar Piano trumpet Drums
contradiction
 Instruments and programming – Dr. Luke 

neutral
 The flag inspired Jeff Thompson , assistant professor and program director of Visual Art and Technology at the Stevens Institute of Technology , to create a sound file of the AACS encryption key as a melody . After a similar encryption key was cracked for the PlayStation 3 gaming system , a new flag was created by a different user as a tribute to Marcotte 's original flag . 

contradiction
 Instruments and programming – Dr. Luke , Benny Blanco , Ammo 

contradiction
 Instruments and programming – Bangladesh , Dr. Luke , Benny Blanco 

contradiction
 Instruments and programming – Dr. Luke , Nathaniel Motte and Benny Blanco 
