Britney Spears to pay $20,000 a month child support

Britney Spears and Kevin Federline arrive for the 2004 Billboard Music Awards in Las Vegas, Nevada in this December 8, 2004 file photo.

LOS ANGELES (Reuters) - Singer Britney Spears will pay child support of $20,000 a month to ex-husband Kevin Federline for the care of their two children and will make a final payment of $250,000 to his lawyers, according to an agreement between the couple filed in court on Friday.

The monthly child support payment is a $5,000 increase over what Spears and Federline, a dancer and rap singer, agreed to last year, the court papers showed.

The agreement comes a week after lawyers said they had agreed to a final settlement in the child custody case, averting the need to go to trial.

In an order filed on Friday, the August trial was called off.

Federline's attorney, Mark Vincent Kaplan, told several media organizations on July 17 the agreement would allow Federline to retain sole custody of his children with Spears -- Sean Preston, 2-1/2, and Jayden James, 22 months.

Spears' $250,000 payment for Federline's legal expenses is due July 30.

Spears, 26, and Federline, 30, married in 2004, split up in late 2006 and their divorce was finalized last year. Spears lost custody of the two boys in January after two brief hospitalizations for psychiatric evaluation.

(Reporting by Alex Dobuzinskis; Editing by Dan Whitcomb and Bill Trott)