Apparently all you need to be a "20th Century Master" is to have had one #1 single in your entire life. Also it helps if you masturbated to Cindy Crawford and had Beavis & Butthead think you were women:

It has oft been stated that genius languishes in obscurity, never to be discovered til long after that genius has passed (see: HP Lovecraft, Kakfa, etc), but sometimes genius and mastery over an entire century can be achieved in your (and my!) lifetime, and still I will have literally no idea who the fuck you are:

I had already purchased the Silverchair and Len installments in the "Unmitigated Geniuses & Iconoclastic Cultural Zeitgeist Champions of Modernity" series to pick up this little number:

Ahh and of course here we reach the apex of modern civilization. I speak not of the wheel, the cotton gin, the printing press, or harnessing electricity, but rather of a gaggle of dongbirds in the early 90s getting together and thinking it would be a great idea to play a bunch of horns but not be a ska band. Ahh Big Bad Voodoo Daddy, is there anything less cool than swing revival? Anything at all? Finally! A recycled genre of music that is unique to my generation! And by my generation, I mean my grandparents' generation!

Other mind-blowers include:
THREE volumes of Kiss
one for LA Guns, but none for GNR
one for Donny Osmond, one for Donny & Marie Osmond, and one for the Osmonds