Halloween is less than a month away, which means it's the perfect time for pumpkin carving, scary movie marathons, haunted houses, and ghost stories. Of course, for a lot of people, telling ghost stories involves huddling around with blankets in the dark with nothing but a flashlight or two, and telling far-fetched, horrifying stories that everyone knows aren't actually true. After all, the entire point is to be scary, not truthful. But plenty of celebrities claim to have had real-life encounters with the supernatural — and some of their stories are seriously spooky.

Take Ariana Grande, for example. The 24-year-old loves scary movies and is obsessed with Halloween — but things got a little too freaky for the singer when she visited a haunted cemetery in Kansas a few years ago. "I felt this sick, overwhelming feeling of negativity over the whole car [when we got to the cemetary] and we smelled sulfur, which is the sign of a demon, and there was a fly in the car randomly, which is another sign of a demon," she said. "I was like, 'This is scary, let’s leave.' I rolled down the window before we left and said, 'We apologize. We didn’t mean to disrupt your peace.' Then I took a picture and there are three super distinct faces in the picture — they’re faces of textbook demons."

Ok, now that is scary! And she's not the only famous person with a ghost story that will make your skin crawl — stars like Calum Hood, Selena Gomez, and Bella Thorne have all had real-life experiences, too. If you weren't a believer before reading their stories, they just may make you second guess what you thought you knew. Check out the gallery to see stars' freakiest ghost stories — and prepare to get serious goosebumps!

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