Chris Brown's Probation Revoked; Not Smoking Medicinal Marijuana in Rehab

Embroiled R&B star Chris Brown got some more bad news today in the form of a revoked probation in response to his October arrest in Washington, D.C.

The singer, 24, who appeared before a Los Angeles County Superior Court judge on Monday was spared jail time because he is already participating in his court-ordered 90-day residential rehab program.

A progress report was included in documents obtained by omg!, in which Brown's rehabilitation program director indicated he has "made improvements and positive behavior change in the program since his arrival," and has been "taken off medical marijuana and is taking psychotropic medication as prescribed".

his latest development in Brown's criminal probation record, which originated from his 2009 pre-Grammy assault of then-girlfriend Rihanna, comes about after the performer was arrested on an assault charge on October 27 after allegedly having an altercation with a man who tried to take his picture outside of the W Hotel.

[Related: Chris Brown's Probation From Rihanna Assault Reinstated]

Brown checked into rehab the day after his arrest, but was discharged two weeks later after a "violent outburst" in which he allegedly smashed his mother's car window with a rock during a family session according to court documents obtained by omg!.

Brown's mother, Joyce Hawkins, was not present for Monday's court hearing, but he was accompanied by girlfriend Karrueche Tran.

He is scheduled to return to court for a hearing on February 10 to determine if additional jail time will be required after completing his three-month rehabilitation.