Britney Spears spent her time readying for her next musical move

While lawyers were in two L.A. courthouses Monday arguing over her various driving violations and custody issues, Britney Spears spent her time readying for her next musical move: a new video.

Usmagazine.com has learned that production on the video for her single "Piece of Me" is scheduled to begin Tuesday at 8 a.m. at Social Hollywood. A source tells Us that the video will be directed by Wayne Isham, who helmed the video for the 2002 Brit hit, "I'm Not a Girl, Not Yet a Woman."

A set source tells Us that since Spears, 25, has a scheduled visit with sons Sean Preston, 2, and Jayden James, 1, on Tuesday, she will only be available to film for two hours, between noon and 2 p.m. During that time she will shoot scenes where she dances on a bar and runs down a staircase. There will be 15 extras, as well as a body double for Brit.

Meanwhile, at a hearing in her ongoing custody battle with ex Kevin Federline on Monday, lawyers for both Spears and Federline discussed holiday visitation plans and whether a representative for Child and Family Services should have access to sealed case documents.

Following the hearing, court spokesperson Alan Parachini told reporters: "There was a great deal of interaction over issues that were important to the parties. There was an order made relating to DCFS access to the files. There were extensive discussions over a visitation agreement over the holiday period. Holiday visitation will be different from the existing schedule. There was another matter discussed that I can’t discuss. The next court hearing is January 23."
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