Even though his musical styles have evolved over the years, this L.A. DJ's looks haven't really changed a bit... save for that emo haircut, which he traded in for a 'do that's now become synonymous with his stage name. 

Although his style isn't for everyone, this electronic music maker has a unique sound all his own and a legion of devoted fans that is on its way towards rivaling Beliebers or Little Monsters. Just two years after dropping his debut album, he was on stage accepting a bunch of Grammys at the 2012 awards show.

So, have you figured out which EDM is posing in this yearbook snapshot? Take a good hard look at his face and then click through to find out who he is!