This is the most epic mashup ever. Firework by Katy Perry, mashed up with... Itself? Well, yes and no. I mashed it up with a cover by Jon Tron, which was featured in his review of Dino City. I felt that his version was much too short, and Katy's version was much too long. I ended up combining them, just for the lulz! :D Inorite, WTFFFFFFFFFFFFFF? Jon, if you're actually taking the time to watch this, make a full version of your Firework cover! You are way better than Katy Perry!
Original Song: Firework - Katy Perry (Duh!) Cover: by Jon Tron Mashup: by Toa of Animation (A.K.A. Gordon)