Kevin Federline continues to make bombshell accusations about Britney Spears! His highly anticipated memoir, You Thought You Knew, hits bookstores next week on October 21. But the tea is already spilling out! In a new excerpt published by USA Today on Wednesday, the former backup dancer opens up about the rocky start to his relationship with [...] Read More... The post Britney Spears Cheated On Kevin Federline With A WOMAN, He Claims In Spicy Book Excerpt! appeared first on Perez Hilton.