Rihanna’s attorney says the singer will appear at a hearing next month as a possible witness in the assault case against Chris Brown.

Donald Etra says prosecutors have told him Rihanna will receive a subpoena to testify at a preliminary hearing June 22. The hearing will focus on whether there is enough evidence to continue the case against Brown.

Etra said Rihanna will comply with the order. It would mark her first appearance in court since felony assault and criminal threats charges were filed against Brown in March.

If she is called to testify, the 21-year-old singer would be subject to cross-examination by Brown’s attorney, Mark Geragos.

Brown was arrested in February on suspicion of hitting and choking Rihanna in a rented car hours before the couple were scheduled to appear at the Grammy Awards.

Etra wouldn’t address their relationship now, but said Rihanna, whose real name is Robyn Rihanna Fenty, was following the case closely.

A judge on Thursday rejected a motion by Geragos to receive police and investigative records related to the case and the apparent leak of a photo of a beaten and bruised Rihanna.