Britney Spears is headed into court today, this time to ask the judge to allow her to have overnight visits with her sons. Her lawyers will use the negative results of her recent random drug tests as evidence that the singer is cleaning up her act. But Kevin Federline isn't going to make things easy. In a statement released to Perez Hilton, his lawyer, Mark Vincent Kaplan, announced, "The fact that a party, one week after a full court hearing, attempts to change the orders of the court, in the absence of an emergency or without any new facts, suggests a continued lack of respect and understanding for what an order of the court actually means." Oh, snap.