Britney Spears’ Ex Jason Alexander Slams Kevin Federline’s Book admin 3 days ago South Tv Comments Off on Britney Spears’ Ex Jason Alexander Slams Kevin Federline’s Book 2 Views Jason Alexander isn’t buying Kevin Federline’s story. Britney Spears’ longtime friend and first husband is speaking out amid claims included in Kevin’s forthcoming book You Thought You… Share Facebook Twitter Stumbleupon LinkedIn Pinterest