Britney isn't worried about losing kids

Britney Spears is not worried about losing her children in a custody battle to Kevin Federline because she knows there is no evidence of her being an unfit mother, say reports.

Federline reportedly filed for primary custody of their two children earlier this month, claiming that the singer was an posing an unnecessary risk to their kids with her erratic behaviour

However, a source close to the 'Toxic' star has revealed that she is not concerned by a possible legal battle.

The insider told X 17 "Anyone close to Britney knows that she's an angel when it comes to being a mum and a friend.

"Her kids are everything to her, there's no doubt about it."

On the subject of the ex-couple's relationship, they claimed that Federline was "hardly even present" while they were married, adding that Spears only stayed with the rapper for the sake of her kids.

They commented: "Staying with a liar just to make life easier for your children - if that's not pure devotion for your kids, then what it?"