Britney Spears and Kevin Federline back in court

US magazine is reporting that Britney Spears and Kevin Federline will be back in court Thursday.A hearing in the Spears-Federline custody case has been set for Thursday at 8:30 a.m.

A source close to the case tells Us that the hearing was called by Kevin Federline's lawyer Mark Vincent Kaplan. The source says Kaplan plans to make a motion to restrict Spears' driving rights due to a technical violation of her court-ordered drug testing. Spears was recently called for a test and could not be reached within the hour, says the source.

The source adds that Spears has not tested positive on any drug test.

Time will tell...keep you posted on this story!