Britney Spears is reportedly planning to reveal her truth in a tell-all book, Heat Magazine reports. Take this with a grain of salt... They claim she's been leaving clues through her Instagram, but wants to be more forthcoming with a book. It'll address her situation that has riled up fans for years.  “Britney is gearing up to break her silence in a tell-all interview. She’s been following the #freebritney movement eagerly. She’s got so much she wants to say and now she believes i