AEG defense attorneys say they want to ask her about her claim for damages.
Documents filed by the plaintiffs put the damage amount at $40 billion. AEG attorneys call that figure absurd. The plaintiffs say the number is based on a document expressing a maximum on what Jackson's loss was worth.
The judge told AEG attorneys they cannot ask Katherine Jackson about the damage statement. However, she can be asked about her economic and personal loss.
Opening statements in the case were April 29 and jurors have heard from more than 50 witnesses in 20 weeks. Key witnesses have included Michael Jackson's his oldest son, his ex-wife Debbie Rowe and several top AEG Live executives.
The trial dates planned for this week have been canceled. The jury will not be coming in until next Monday because juror No. 1 has a family emergency.