Britney Spears' cousin to testify

Britney Spears' cousin Alli Sims has been ordered to testify in the singer's custody battle. Alli, who until recently worked as Britney's assistant, was served the legal papers after partying with the star in the Hollywood Hills yesterday (12.08.07).

A source told People magazine: "Alli was really shocked and covered her face. She was really distraught and said 'Oh my God.' " The subpoena papers, sent by Britney's ex-husband Kevin Federline, will force Alli to testify about the star's parenting skills.

Alli recently defended the 'Toxic' singer when she insisted she is a great mother to 22-month-old Sean Preston and Jayden James, 10 months.

She said: "She's a wonderful mom and she is so hands-on. Britney loves those babies to death. And they adore her."

Last Wednesday (08.08.07), Kevin filed for primary custody of his two children with Britney.

The 29-year-old is hoping he will be awarded primary physical custody because of Britney's recent erratic behaviour.

Kevin and Britney, whose divorce was finalised last month, originally agreed to equally share custody of their sons.