Newly-single star BRITNEY SPEARS has reportedly placed her Malibu, California mansion up for sale after filing for divorce from husband KEVIN FEDERLINE. Spears stunned her aspiring rapper spouse on Tuesday (07NOV06) when she filed legal papers seeking the dissolution of their two-year marriage and sole custody of their two sons SEAN PRESTON, 14 months; and JAYDEN JAMES, two months. Federline was unemployed when Spears paid $6.9 million (GBP3.8 million) for the eight-bedroom home following their October 2004 wedding. The lavish abode includes an outdoor kitchen, spa, gym, tennis courts, $150,000 (GBP83,000) nursery and a recording studio. The New York Post reports Spears is asking $13.5 million (GBP7.5 million) for the mansion.