> Pretty sure they used fake ads, but it’s a good precedent anyway.

the ads aren't fake.. well, not all of them -- they're included ironically -- and many aspects of that album generated legal issues for the band.[0]

[0]: https://en.wikipedia.org/wiki/The_Who_Sell_Out

The whole album was supposed to be a play on a pirate radio station if memory serves, and a damn good one at that. Probably my favorite Who album honestly (besides Live at Leeds, of course).