[Maceman]

It's already been done -- in a rap video:

Keynes v. Hayek: A Rap Anthem

[Bokababe]

I know, I love that video.

This is more formal and academic, otherwise as they said -- they'd have picked someone like Peter Schiff who'd have wiped the floor with Krugman.

Personally, I still think that they should have gone with Schiff, who can make economics more interesting to a broader audience, but maybe that's just me.