J and B in the Italian Horror Movies?

Almost every italian horr movie i've ever seen has j and b in it. I don't know why that is. If somebody out there is, like, an ital film historian who wants to tell us why j and b is in all these movies, iud i would love to know. One of the top entries on the blog right now is beyond the door. That's the italian exorcist rip off where they're discussing baby names and a lady goes, what about steve? No, knock on people named Steves. It's funny.