Kevin Federline is begging his soon to be ex wife, Britney Spears, to enter a rehab facility for her own sake and the sake of their kids. A friend close to Kevin revealed that he was distraught over her constant partying since their November break up. Federline has even threatened to attempt to seek legal custody of the kids if Spears doesn’t seek help. He is reportedly desperate and taking all angles in an attempt to get through to the troubled popstar. The source says, “He’s afraid that she will end up hurting herself.” Only time will tell how this drama unfolds.