The whole "Monarch Programming" theory. Real or not?

I’ve been reading about this quite a bit, but it still makes my brain want to fall out of my head. The purporters of this phenomena are accusing people like Rhianna, Michael Jackson, Lady Gaga and Britney Spears of all showing signs of this “programming”. Yet I still don’t understand what these so-called experts are telling me. Who do they say is behind this? And how are they getting access to these people? I’m just not getting it! Almost forgot, what is “their” purpose?