Britney's "cousin" to testify in custody battle

Britney Spears's longtime companion Alli Sims was thrown in the middle of the popstar's custody battle early Sunday morning when she was served with legal papers. Sims was reportedly leaving a party in the Hollywood Hills at 2:30 a.m. when she was served with a deposition subpoena sent by Kevin Federline's lawyer compelling her to testify about Spears's parenting skills. "Alli was really shocked and covered her face," said an observer. "[She was] really distraught and said, 'Oh my God.'" Federline filed for primary custody of sons Sean and Jayden last week.

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