Lawyers for Britney Spears have filed an emergency court motion seeking to expand visitation rights with her children, who she lost custody of last week.
Mark Vincent Kaplan, lawyer for Spears' ex-husband Kevin Federline, told The Associated Press that he received the motion Wednesday and will be in court Thursday.
An after-hours call to Spears' attorney was not immediately returned.
Spears was ordered Oct. 1 to relinquish custody of her children by a court commissioner who had raised concerns about drug and alcohol use.
Superior Court Commissioner Scott M. Gordon later granted some visitation rights to Spears, but required that a monitor must watch her while she's with her sons, 2-year-old Sean Preston and 1-year-old Jayden James.