"Extra" has learned that Britney Spears has left her Beverly Hills home, presumably for the courthouse.
Today's custody hearing could be her last chance to regain her boys until April. If she doesn't prove why she should regain temporary visitation rights with her boys, the order which gives Kevin Federline primary physical custody could stay in effect.
Brit was stripped of visitation rights following last week's emotional standoff and meltdown. Police officers and firefighters at the scene are expected to testify today.
The hearing started at 9:30 AM.