reportedly been delayed over concerns among the A-list stars that the former pop princess spills tea about in the book. Publisher Simon & Schuster has put the book on hold after getting letters from two of Spears’ famous exes, according to the Sun. “Britney is brutally honest in the book — there are a lot of nervous A-listers,” a source told the outlet. “Strongly worded legal letters have been sent to the publishers by people who know Britney and who fear what she has written.