Andrew Lloyd Webber said he once called a priest to his London home to help remove a poltergeist.
The acclaimed composer, whose hit West End musicals include The Phantom Of The Opera, claimed the spirit would place theatre scripts in an “obscure room”.
The spooky activity came to an end after a priest had visited the 19th-century property he owned in Belgravia, he said.
In an interview with The Telegraph, Lord Lloyd Webber was discussing whether any of his theatres were haunted.
The 75-year-old said he had never seen a ghost – but had witnessed some unusual activity at his home.
He said: “I did have a house in Eaton Square which had a poltergeist.
“It would do things like take theatre scripts and put them in a neat pile in some obscure room.
“In the end we had to get a priest to come and bless it, and it left.”
A poltergeist is described as a spirit or supernatural force which is capable of moving objects, making noises or even biting and pinching.
Lord Lloyd Webber created the iconic music for The Phantom Of The Opera, which first opened on the West End in 1986.
The phantom in the production and the source novel by Gaston Leroux refers to a disfigured musical genius who haunts the Paris Opera House.
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His compositions for other celebrated musicals include Cats, Jesus Christ Superstar and Joseph And The Amazing Technicolor Dreamcoat.
Actor Sir Patrick Stewart has also reportedly claimed he saw a figure on stage at the Haymarket Theatre in London while performing with Sir Ian McKellen in their 2009 production of Waiting For Godot.
He said: “(The spectre) was wearing a belted Norfolk jacket.
“I think he had a shirt – a rather old-fashioned check shirt with a tie underneath.”