Should I take all the stuff about Anti-Christ and Illumanati symbols in music videos seriously?

I love music, I love POP and Rock music as well, I am 28 now and am in love with all kinds of music, I loved Michael Jackson, I love Madonna, I love creative music videos, I admire the creativeness of Lady Gaga, Rihanna, Chris Brown (all said to have sold their souls to the devil) and the other young artists of today, I love my hip hop too, Jay Z, Eminem DMX (guilty too) etc, but hey I see on the internet that these guys have sold their souls to satan for the sake of fame, or they support this so-called illumanati (symbolic hand gestures, the seeing eye, blah, blah) since they have influence including the once sqeeky clean Beyonce (who I really think is such a talent we have), I personally am able to separate entertainment from the madness (but should I not even be watching these video's), granted Lady Gaga's videos though brilliant, do have many questionable images and symbolic stuff that makes me cringe, we are talking about her videos, Bad Romance, Alejandro, Paparazzi, brilliant, amazing creative videos, scary images and symbols if you dissect them. I am now worried for my nieces and nephews who love these artists, should I allow them to admire these stars, I mean I am a child of the 80's videos where so different. It would be hypocritical to forbid the kids in my house to admire their Pop Stars for I know that its a great feeling to admire these so-called perfect people (its fun when your a kid), I wonder maybe now that I know better I should not allow this, I warn them about some symbols but hey its hard when I like the videos too, I am a creative person I can look past the chaos, how do you parents, aunties and uncles find the balance with your kids with all this imagery on our tv screen?