The creator of this song has got Kant's philosophy right. He clearly refers to the ideas that Kant got so wrong. For instance these lines:
"Thus space and time
are forms of our perception
whereby sensation's synthesized in orderly array;
the same must hold
for rational conception:
in everything we think, the laws of logic must hold sway. "
or these lines:
"These constant laws
whereby we shape experience
are simply those which regulate our reason: that is plain.
So don't ask why
the stars display invariance --
the Cosmos is produced by your disoriented brain!"