demi lovato vs. justin bieber

As Long As You Are Cool For The Summer 

What Do You Mean For The Summer (MASHUP)  

Sorry X Cool for the Summer  

Sia - Cheap Thrills ft. Sean Paul and... Justin Bieber · Zayn · Major Lazer · Katy Perry · Rihanna · Demi Lovato · Ariana Grande. 

As Long What Bands Give Black & Yellow Gangnam Style (DJ Crasher MashUp) 

Talking About Justin Bieber 

As Long As You Love My Heart Attack (mash-up) 

As Long As You Love a Heart Attack (MashUp) 

ALAYLM Heartattack MASHUP 

What Do You Mean For The Summer (MASHUP) 

( Justin Bieber ,P!nk ,Katy Perry ,Fun ,Adele,Rihanna,1D,Demi Lovato &more 

Justin Bieber vs Demi Lovato - As Long As You Love Me (Heart Attack Mashup) - YouTube