The best one of these is the Pink Floyd one. It’s also the only one I believe was intentional too. Rather than some hidden satanic message I think that these are really just the result of some creative person listening to them A LOT and finding something somewhat coherant that sounds close. Seriously, listen to them without the lyrics displayed first, you won’t get ANY of them (except for maybe the word “satan” in Stairway).
I was surprised to see Britney Spears on there though — OH GOSH! I just saw lyrics for that one! That’s hilarious. That one’s not even imaginative. But it’s funny…btw that pic is unrelated. Well it’s related to the topic…oh, you get it.