A shocking allegation has rocked Hollywood — Kevin Federline’s upcoming memoir “You Thought You Knew” accuses Britney Spears of disturbing late-night behavior with their sons. The bombshell knife claims allege that Britney’s children once woke up to find her standing silently in their doorway, holding a knife. Federline says he fears for the pop star’s well-being and warns her life is “racing toward something irreversible.”

Singer Britney Spears says, "I just got so wet..Jesus!" as she performs 'Slave' on stage in Las Vegas in water fountain stage set.