but I'll drop the YT link while fixing a neural misfire:

That mashup works surprisingly well. I shouldn't be surprised that a mashup that sticks in my head sometimes, "Mashing Up That Hill," is also by Wax Audio (and has been given video). Dude has a whole bunch of these (http://www.waxaudio.com.au/video), including an alarmingly upbeat if straightforward "Careless Whispers" x "Rebel Yell."