Why are people saying singers are Satans Puppets?

The Illuminati is apparently a secret organization that wants a New World Order and to change society in some way. Some people think that musicians such as Rihanna are with the Illuminati and trying to force us to be okay with it and to do bad things using her music. The reason they think this is because they think it makes sense and they see symbols in the videos and songs. I don't believe any of it, though.