Jamie Lynn Spears had some harsh criticisms about Britney Spears‘ parenting — or lack thereof — when it came to her two sons! That’s what Kevin Federline claims in his upcoming memoir — and he brought receipts! The 47-year-old former dancer revealed in You Thought You Knew, which drops on Tuesday, that his current wife, [...] Read More... The post Jamie Lynn Spears SLAMMED Sister Britney In Brutal Messages To Kevin Federline! And Now He's Sharing Them... appeared first on Perez Hilton.