Britney Spears has hit out at her ex-husband Kevin Federline's "constant gaslighting".
The Oops!... I Did It Again singer's former spouse - the father of her children Sean Preston, 20, and Jayden James, 19 - has made a series of explosive allegations about the star in his memoir You Thought You Knew, including that she used to stand over the boys with a knife when they were sleeping, but she has hit back at his "white lies".
