It is pretty simple you just get yourself some megafauna, whatever is laying around. Maybe a few giant sloths, a cave bear or two. Don't forget the mammoths of course maybe sprinkle in some dire wolves.

Then go ahead and put each one in the cockpit of a supersonic aircraft. I would really suggest that you use a few different types. Like the F-4, an English Electric Lightning, maybe Saab Viggen or a Dassault Rafael. I might include a Concord just for the fun of it. Oh and you can't forget the SR-71 Blackbird. You know for the extra spice.

So just start crashing these into each other as Mach 1+, the sounds of the explosions, record them and you got yourself an album. Just make sure your recording setup is top notch. You don't want to have to do a second cut.