Kevin Federline is sharing an update on where his sons stand with their mom, Britney Spears, after the release of his memoir. "We haven't talked specifically, but I know that she's talked to our sons, which is good," Federline, 47, shared during a Monday, November 10, appearance on Talk Show Live. "I'm really hoping that through all this turmoil, through all of it, that there's light at the end of the tunnel. I see it, but it's going to be a difficult road and it's gonna take time." In his memoir, You Thought You Knew, Federline details his marriage to Spears and their divorce.