Kevin Federline was "blindsided" when Britney Spears went "behind my back" and filed for divorce in 2006, the onetime backup dancer tells People. But since then, Federline says he's been focusing on one thing: being a good dad to the couple's two sons. "My kids are always most important," he says. Federline, who had full custody, says he's glad to share Preston, 3, and Jayden, 2, with Spears again.
"I'm definitely rooting for her," he says. "There's nothing more that I want than for her to be in the best health and doing what she loves to do."