The accused Los Angeles drug dealer known as the "ketamine queen" has agreed to plead guilty to charges that she supplied the dose of the prescription anesthetic that killed "Friends" star Matthew Perry, prosecutors said on Monday.

Two physicians who also helped supply Perry with ketamine are awaiting sentencing. Dr. Mark Chavez, 55, of San Diego pleaded guilty to one count of conspiracy to distribute ketamine. He faces up to 10 years in federal prison at his sentencing hearing next month.

Jasveen Sangha, who is dubbed the 'Ketamine Queen,' agreed to plead guilty to charges in connection with Matthew Perry's overdose death. Here's everything to know about the Jasveen Sangha.