Britney Spears' Sons Released from Hospital to Kevin Federline

The boys were with Kevin Federline's bodyguard. Their car was being followed by the paparazzi at 4:15 a.m.

Sources tell Us that Federline had returned to his Tarzana home before his son earlier this morning.

Jayden and Sean Preston were taken to the hospital after mom was rushed via ambulance around 11 p.m. Thursday. Federline showed up at 12:40 a.m.

As of 3:45 a.m PST Friday, Spears remained in the hospital under observation. See her being wheeled on a stretcher here.

A hospital source tells Usmagazine.com that Spears has been designated a "special needs" patient, meaning "they have either overdosed or tried to commit suicide. So we go stay with these patients and monitor them constantly. We watch them so they don't hurt themselves and watch the people who come visit them to make sure they don't pass anything to them."

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