Who Actually Is Marshmello? [VIDEO]

This phenomenon is starting consume us... obviously. 

The Philly born DJ Marshmello has made so many appearances at award shows, concerts and more yet never actually takes off his head--so who is the man behind the mask?

After the most recent iHeart Radio MMVA's, fans are speculating the EDM artist to be Shawn Mendes (after he removed his head and accepted the award the DJ's behalf) although, his reported identity is said, Chris Comstock. 

But what happens when TWO Marshmello's enter a room and are faced to justify which is the REAL Marshmello?