Spears' ex-husband wrote about his concerns around the pop star in an upcoming memoir, "You Thought You Knew." ...

Britney Spears' ex-husband Kevin Federline raises disturbing allegations about the pop star in excerpts from his new book.

Federline’s new memoir, which details his marriage to Spears, is titled “You Thought You Knew” and will be released next week ...

Britney Spears has responded to the "humiliating" allegations Kevin Federline made in his new memoir about their divorce and ...