K-Fed: I'd Rather See My Kids Than Britney's Money

Clockwise from top left: Kevin Federline attends Sean John Fall 2008 during Mercedes-Benz Fashion...

Clockwise from top left: Kevin Federline attends Sean John Fall 2008 during Mercedes-Benz Fashion Week, in this file photo./ Britney Spears tapes her appearance for the Rockefeller CenterTree Lighting Ceremony on December 2, 2008 in New York City. /(Bottom right) Jayden James Federline attends Britney Spears performance on ABC's "Good Morning America," on December 2, 2008 in New York City./(Bottom center) Sean Preston is seen leaving his mother, Britney Spear's GMA performance, at the Big Apple Circus on December 2, 2008 in New York City. Federline and Spears split up in 2006 after two years of marriage.

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Kevin Federline says money was no object in his custody battle with Britney Spears.

Federline tells People magazine he vowed to "spend every last dime" to make sure that sons Sean Preston and Jayden James were OK.

"That's all that mattered. I didn't know how much power Britney had. That really scared me," he says.

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Federline and Spears split up in 2006 after two years of marriage. The aspiring rapper later gained custody of their boys as Spears' behavior spiraled downward. Spears has said that things fell apart when Federline began focusing on his rap career. But Federline tells the magazine he was more concerned with the children.

"Not that I ignored Britney, but my kids are always most important," he says.

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