Zayn Malik is writing a tell-all book.
The 23-year-old singer is planning an explosive autobiography, which will lift the lid on his five years in One Direction, alongside bandmates Liam Payne, Niall Horan, Harry Styles and Louis Tomlinson.
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A source told the Mail on Sunday: "This book is going to be explosive and Simon Cowell will be furious with Zayn and may even try to stop it coming out.
"But Zayn is determined to reveal the secrets behind the clean image that was always so fiercely protected by the band's publicity machine."