Spears' father Jamie Spears was granted control over her personal and business affairs in February, and the singer's former self-styled manager and constant companion, Sam Lutfi, has agreed to a restraining order that keeps him away.

Spears won praise for a guest appearance on the TV sitcom "How I Met Your Mother" in March and is set to reprise her role as a office assistant on the show in May.

"We are so pleased at Britney's progress and we are very appreciative of the court's recognition of this progress," her parents said in a statement on Tuesday. Spears is due back in court in July for a further progress report.