Britney never fails to deliver, what a way to kick off the New Year. Los Angeles police were called to Britney Spears’ Beverly Hills home Thursday night to resolve what authorities have deemed a “custodial dispute” involving her and Kevin Federline’s two children.

According to LAPD spokesman Officer Jason Lee, officers got a call at 8 p.m. and, as of 10 p.m., were still there.Lee couldn’t say who called the cops, but he said the call was in reference to as “family custodial dispute that we are trying to resolve…peacefully by court order,” Lee said.

Us Weekly’s Website reported that the clash in question occurred when Federline’s bodyguards arrived at Spears’ house this evening to retrieve toddlers Sean Preston and Jayden James, and Spears refused to hand the boys over.”In a normal case when someone shows up with a certified court order saying the kids need to be somewhere else, the police see to it that the order is obeyed. But that is in a normal case,” Spears’ soon-to-be former family attorney told Us. The Beverly Hills lawyer filed a motion Wednesday to have himself relieved as Spears’ council, citing a “breakdown in communication.”The troubled pop star gets to see her sons three times a week under the terms of her current custody arrangement with Federline. She lost custody to her ex in October.