Ghost and supernatural story tellers have been around for ever, but there is something about them both skeptics and non-believers can't get enough of...especially if they're from your favourite stars.
Plenty of A-list celebrities have shared their apparent paranormal experiences over the years, be it alien lifeforms, ghosts or even A-list actor Heath Ledger, but do you believe them?
With Halloween just around the corner, here are 20 stars that believe in the supernatural:
The Dangerous Women singer Ariana Grande claims to have had a terrifying supernatural encounter following a visit to a Stull Cemetery in Kansas City known as the 'seven gates of hell on earth.'
The 23-year-old singer said she "felt sick" and an "overwhelming feeling of negativity" after apparently smelling sulfur in the car, a sign of the demon.
Later, weird things happened to Ariana. The American said she heard whispers one night in bed, along with disturbing images.
Nicholas Cage is absolutely convinced he seen a ghost while staying at Francis Ford Coppola's house in Napa Valley.
The American actor was staying in the attic and one late night, he said a women with big hair appeared. At first, Nic thought it was his aunt, but was quickly proved wrong when she approached him.
The 'Leaving Las Vegas' actor says still to this date he doesn't know who it was but it "freaked the life" out of him.
This one is probably the most weird supernatural experience. Michelle Williams said she was visited TWICE by none other than the dearly departed actor Heath Ledger.
The first time, American actress Michelle claims to have been woken up by Heath moving furniture around the bedroom because he felt like redecorating.
The second time, Michelle says Heath turned up for a chat, and gave Williams a heart-felt apology for not being around to help raise their daughter Mathilda.
Unlike some stories where the apparent ghost appearance torments and scares the life out of them, Michelle said it really helped with her grieving process.
In 2003, Matthew McConaughey said he encountered a ghost while staying in a haunted house and was terrified.
The Wolf Of Wall Street actor said that he kept hearing noises sounding like "a dime getting dropped ten feet". Matt leapt out of bed, grabbed a baseball bat and started running around the house naked like a man possessed but couldn't find the culprit.
Since this incident, Matthew seems to think he's made peace with the ghost and claims she's an "elderly female". To make things slightly weirder, the 46-year-old has even named her; Madame Blue.
After purchasing her £8 million home in Sussex, England, Adele was already having series second thoughts.
Shortly after moving in, Adele told one of her close friends that she thought the place was haunted after she kept hearing the same noises night after night coming from empty rooms. Owning a 25-acre property probably effects your imagination though, we'd have thought.
However, the property does have a religious history and used to be a convent, which would give reason for unsettled spirits. Just to be sure, Adele made her security guard move in with her, as well as hired two more to watch over the grounds.
Kesha's sexy encounter with a ghost inspired her song "supernatural".
In 2012, the singer spoke openly about her bizarre supernatural experience to talk show host Conan O'Brien, claiming that she had sex with a mysterious ghost she found under her bed sheets.
Talking about the ghost, Kesha said: "I don't know his name, he was a ghost! I'm very open to it."
Later, she told varies news outlets that she had to undergo an exorcism. "I know it sounds like the most ridiculous story, but I went to my healer...and she told me that because of my job, I exude energy."
The Rolling Stones frontman claims once while he was camping at Glastonbury he saw a "rare luminous cigar-shaped mothership."
Needless to say, this was during the height of their fame in the 60's when the Rolling Stones partied like no other.
Jagger was so convinced with what he saw that he subsequently installed a UFO detector on his estate, and it went off every time he left home leading him to concludes the area was full of electromagnetic energy. Because aliens are prankstars like that...
We're not convinced, Mick.
Kate Hudson revealed during the filming of Skeleton Key that she's had her fair share of ghostly encounters.
Kate said that most commonly she sees a ghost with no face, and even the spirits grandmother once.
The actress says her and her mother both posses the ability to contact the supernatural, and even gives tips to those who see ghosts, saying: "When you see a ghost, you are supposed to tell the energy what year it is and that they don't belong here."
Arguably the greatest boxer of all time, Muhammad Ali, often said some bizarre things.
But one thing is for sure is Ali was an avid believer in aliens, and claimed to see UFO's on several occasions.
The boxing legend's most well known 'encounter with aliens' was when he was jogging in Central Park with his manager. Ali and his manager both agreed they seen a huge alien mothership that was full of friendly aliens visiting from another world.
Imagine all the people.... and aliens, too? In 1974, while staying in a New York City penthouse, John Lennon is convinced to have encountered aliens.
It all apparently happened one night after a blazing light jolted him awake while sleeping. The co founder of the Beatles went outside to see four "bug-like" people with "big bug eyes and little bug mouths" scuttling around.
Lennon said the creatures even gave him a metal-egg-like object that he carries around with him. The authorities claimed that at the time of the incident they received several similar phone calls from other people in the area.
Scientologist actor Tom Cruise is also a firm believer in aliens.
In fact, the Top Gun star went as far as constructing an $5 million bunker to protect himself and his family from an alien invasion.
When asked about his beliefs, Tom said: "Are you really so arrogant as to believe we are alone in this universe? Millions of stars, and we're supposed to be the only living creatures? No, there are many things out there," he said in 2007. "We just don't know."
On the set of Introducing Dorothy Dandridge, Halle Berry claims to have been aggressively haunted by Dorothy's ghost after holding on to one of the dresses while filming.
Halle was keen to keep the dress when filming was over, but decided she can't because of the ghost. "When the film was over, I desperately wanted to keep her dress, but it had to go." The actress said while holding the dress, water boiled on its own and she even witnessed floating doll dresses.
What's even more bizarre is her connection to Dorothy doesn't stop there. Many believe Halle, who was born a year after her death, in the same city, with the same career path, might actually be Dorothy reincarnated.
Professor Steven Hawking is adamant aliens are real, but does not expect humans to find them anytime soon.
In an interview, Steven said: "Of course it's possible UFO's really do contain aliens as many people believe, and the government is hushing it up."
In 2010, the professor warned that humans need to tread carefully when they first meet them, as they will be hostile. Steven also believes that when we do eventually discover aliens, it will probably destroy humanity.
Miley Cyrus told Elle Magazine in 2013 that she ditched her London apartment during her European tour after she seen a ghost.
"I had seen a little boy sitting on the sink watching me take a shower so I felt really freaked out. I was sitting there the next night and I could have sworn I could see this little boy sitting there on the sink, kicking his feet."
Miley also claimed the ghost tried to burn her little sister. "One night, my little sister was standing in the shower and all of a sudden I heard her scream," the singer said. "I ran in there and the water had somehow flipped to hot and she hadn't turned it. It was burning her."
Scarlett Moffatt has never been afraid to say what she thinks, especially when it comes to the topic of supernatural.
The Gogglebox star revealed that she's a big believer of the supernatural, especially aliens and mermaids, who she believes are real after researching online.
"I spend time googling about aliens and mermaids," said Scarlett. "Me and my dad have our own forum, and it's talking about whether we think aliens and mermaids are real. We haven't delved that far into the ocean yet."
Scarlett has previously spoken about how she and her family are all fascinated by the idea of aliens, and even have code words to use if they ever get abducted by them.
UFO's were reportedly always around the King of Rock n' Roll.
According to Elvis himself, UFO's were hovering in the sky when he was born, and visited again when he was eight years old.
Elvis claimed that he was telepathically contacted by two alien beings who showed him his future, although, according to friend Larry Geller, "had no idea what it all meant at the time".
Elvis also spoke out about his two UFO's sightings as an adult, once as they drove through a desert and the second near Graceland.
It seems Ryan Gosling just couldn't avoid ghost encounters as a child...
The Canadian actor says his family moved out of their Ontario home when he was younger after his mother finally agreed that it was haunted.
Talking about the ghost he encountered, Ryan said: "He just sat. And I knew from a very young age that he was a ghost, too. Nobody could see him and I learned to live with that - I had to."
Thankfully for Ryan, his mum did eventually believe him. "A few years later my mother saw him, then my cousin, then my uncle. We were outta there." Ryan also claimed to have "seen things" backstage growing up in Disneyland, including "Mickey Mouse with his head off drinking coffee." Riighhtt.
We all know Lady Gaga can be a bit crazy, and it's sometimes hard to tell when she's been serious or joking.
But one thing that is for sure, however, is Lady Gaga believes in ghosts. Talking to the Daily Star a few years ago, a member of her touring crew claimed she had been haunted by a spirit named Ryan.
"She's been telling us all for months that she has a spirit named Ryan who travels the world with her. She's been pretty terrified by this spirit, but more than anything he's annoying her as he won't leave her alone."
He's starred in his share of spooky films, and it turns out in real life Keanu Reeves has had his own experience with the supernatural.
When asked by Jimmy Kimmel during his late-night show if he'd ever seen a ghost, Keanu replied: "Yes, when I was a kid. Our nanny was in the bedroom and there was a doorway and all of a sudden this jacket comes waving through the doorway, this empty jacket - no body, no legs."
Keanu said he looked over to his Nan, who showed off a "horrific expression" after witnessing it too. The Matrix star said still today he sees the "figure" in his dreams and nightmares.
Demi Lovato is another pop star that is convinced ghosts exist, after claiming to see one.
Talking to BuzzFeed, Demi said: "My house in Texas is so ridiculously haunted. Not by a bad spirit, but a little girl. I think her name is Emily. I've had a medium come over and ghost hunters, and they both told me the same name, Emily."
The former Disney star also told Ellen DeGeneres that when she and her sister were young, they'd talk to a girl in the closet... named Emily. In 2013, Demi said in an interview that she now often goes "ghost hunting."