12 times parents checked their baby monitors and had to wonder if their kids were possessed.

Baby monitors are a wonderful invention that allows parents to leave their sleeping kids for a moment to get some much-needed alone time in another room without feeling (too) nervous—but monitors also have the unfortunate side effect of exposing just how creepy kids are when left alone. From children singing ominous music, to simply looking evil, to pulling off maneuvers straight out of an Exorcist sequel, there's a reason those Paranormal Activity movies are basically all filmed on baby monitors. After all, it's a lot cheaper and there's a seemingly inexhaustible supply of scares from the 0-3 crowd out there. Here are 12 of the creepiest babies ever caught on camera:

1. Let's start off easy with this 2-year-old who watched 'Star Wars' with her dad—and has already chosen between the Light and the Dark side.