First off, it'd be interesting to classify the bands which may belong in these categories
and, secondly, approach them this way to understand better their music. As I see it:

Pop art - The Cars, Sparks, Japan (discovering new virtues of mass products, making high art out of the the crude matter)
Post-modernism - John Cage, John Zorn, Roxy Music (integrating new elements into old music, conformism)

So, what could you add, explain, contribute or, maybe, correct about that?
pop art - devo
Quote by Guns N' r0ses
I think its 18 in california but I'm just wonderin cuz if i get caught then I can be like "well legally im allowed to watch it" and they'll be like "k koo"