A mystery book has rocketed to the top of book charts as Taylor Swift fans pre-order it in droves, convinced the novel is written by the singer herself. The only known information about the book so far is its title - '4C Untitled Flatiron Nonfiction Summer 2023'.
The book is due to be published on July 9, is yet to have any author attached to it, is priced at $45 (£35) and consists of 544 pages. On Amazon, it currently states that the potential 'memoir' is "temporarily out of stock".
The book by publisher, Flatiron - which is an imprint of Macmillan - has soared to the number two position in Amazon's book sales chart and has even nabbed the top spot in Barnes and Noble's pre-order chart. Flatiron has been approached for comment.
So what are the clues leaving Taylor Swift fans certain it will be the singer's first ever book? Many have been speculating that the amount of pages (544) is a major hint to Taylor Swift's favourite lucky number, 13 - as this is the total when each individual number is added up together.
Fans have also thoroughly inspected hints they believe the US star has dropped throughout her recent social media posts - including an announcement about the release of her upcoming re-released album, Speak Now (Taylor's Version).
On Instagram, alongside a glamorous selfie, the 33-year-old wrote: "It fills me with such pride and joy to announce that my version of Speak Now will be out July 7 (just in time for July 9th, iykyk)."
According to reports, the first print run is said to be a whopping one million copies, so it would seem the book is expected to do quite well. A Reddit thread has even been created full of theories by fans over the book.
In one post on the chat forum, a screenshot shows a list of notes written by Flatiron about the upcoming book. "It is fun and NOT political!" one reads, while another states that booksellers would have to sign an affidavit to get copies ahead of the launch.
A third note claims the title and author will be officially revealed on 13 June. However, a report by Variety suggests Swift fans who have pre-ordered the book will be left disappointed. The publication has claimed the memoir is not hers - although it doesn't reveal who the author could be.