So this is quite possibly one of my most technical tracks I've ever done. Rather than a mashup, this is a complete bootleg/remix meaning, as you may notice, the entire instrumental was done by myself.
Deadmau5 - Ghosts N Stuff (DJ Firth Remix)
Galantis - Runaway (You and I) - acapella
Also, if anyone is interested I can upload the remix without vocals.