Rihanna -- See You Downtown, Chris Brown

Rihanna officially got served with the papers, the papers ("Goodfellas" anyone?) -- meaning she has officially been subpoenaed to appear in court to testify against Chris Brown.

Rihanna's lawyer, Donald Etra, told People, "Rihanna was served at my office by L.A. DA investigators ... if the preliminary hearing indeed goes forward, she is now legally required to be there, she will be there, and will answer all questions truthfully."

The hearing is set for June 22.