The singer's talents have been overshadowed by recent troubles

The pop star would be granted access to her sons "very soon", said the lawyer, Mark Vincent Kaplan.

He said both parents had agreed to a revision of a court order stripping the 26-year-old of her visitation rights.

"The process of reinstating the children's mother as a participant in their lives can commence," he said.

Mr Kaplan did not disclose further details of the agreement.

Stand-off

Mr Federline was given sole custody of Jayden James, one, and Sean Preston, two, by a court commissioner who suspended the singer's visitation rights on 4 January.

Mr Kaplan said the parents were pleased an agreement was reached

Ms Spears had refused to hand the children back to their father after a visit, resulting in a stand-off with police at her house.

She was admitted to a hospital psychiatric ward following the incident, and spent another six days in a psychiatric unit earlier this month.