I rolled my eyes at the inclusion of "We Will Rock You", and Freddy Mercury the Chipmunk is a little distracting, but I liked it.

Why do people insist on mixing "We Will Rock You" with ANYTHING? It never fits just because that damn hook/chorus is so fucking recognizable it takes the fun out of everything!

There's also software, (Ableton and the like) available where you can speed up or slow down a song without changing the pitch.

Other than that, nice job.