Britney Spears and Kevin Federline are likely not married yet, according to the new issue of Us Weekly. The magazine obtained a four-page legal document signed by the couple stating that they "intend to participate in a 'faux' wedding on September 18, 2004; however, they do not intend to and shall not validly marry one another on said date."

According to the magazine, Spears and Federline not agreeing on the terms of a prenuptial agreement is what held up the couple from procuring a marriage license.

"This is all ludicrous," a spokesperson for Spears told Us. "They are happily married, and I have no reason to believe otherwise."

Spears and Federline celebrated what most thought was their wedding day late Saturday night/Sunday morning at the Studio City, California, home of wedding planners Alyson and Jeff Fox. Approximately twenty-five close friends and family members, including Spears' mother and sister, were in attendance.

Spears and Federline may be planning another wedding, or simply the paperwork: according to California state law, a couple may certify its nuptials retroactively.

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