ET has the latest...

BRITNEY SPEARS' dad JAMIE and her lawyers are expected back in a Los Angeles court today to address the issue that they believe MARK VINCENT KAPLAN, the lawyer for Britney's ex KEVIN FEDERLINE, is charging his daughter too much, according to People.

Sources tell the magazine that Britney's new custody attorney, STACY PHILLIPS, will argue a $500,000 bill from Kaplan as well as a $600,000 tab from the pop star's former attorney SORRELL TROPE.

It was ruled last week that Jamie will remain Britney's co-conservator until July 31.