...I give you an FBI report on the Monkees, also described herein as "The Monkeys" and "four young men who dress as 'beatnik types.'" Here's the high point:
During the concert, subliminal messages were depicted on the screen which, in the opinion of [redacted] constituted "left wing innovations of a political nature."
A great deal of the document is blacked out, and there is a second Monkees document in the FBI vault that is redacted entirely. Apparently the rock world has secrets that civilians must never know.