Chris-brown-booty-call R&B star Chris Brown pleaded not guilty in an L.A. court Monday afternoon to charges stemming from an attack on his girlfriend Rihanna.

Brown appeared at the arraignment in L.A. Superior Court and entered the plea through his attorney, Mark Geragos. Neither man spoke to reporters.

Click here to see the TMZ video from inside the courtroom.

Rihanna's attorney, Donald Etra, later told reporters that Rihanna hoped a plea bargain could be struck. He added that she would testify against Brown if it was necessary.

Click here to watch a video of  his remarks. Does Rihanna want a deal too?

Lets get that plea bargain worked out stat, guys!

An April 29 status hearing has been set for Brown.

Los Angeles prosecutors have said Brown attacked Rihanna, 21, during an argument in his rented Lamborghini last February.

Brown would later issue a statement saying he was "sorry and saddened" about the incident and was seeking counseling. He then attended anger management classes.

The charges accuse Brown of assaulting Rihanna "by means of force likely to produce great bodily injury" and threatening to commit a crime "which would result in death and great bodily injury."

The singer, 19, could face up to four years in prison.

His mom — alternately crying for and praying for her son — was in court during the preliminary hearing.

More Chris Brown and Rihanna Dish:

Was Rihanna mad about Chris Brown's cougar booty call?

Oprah warns Rihanna: 'He will hit you again'

Rihanna can legally tape record Chris Brown's phone calls? This should be good

Chris Brown, Rihanna back together working it out at Diddy's Miami home

Harvey Levin defends TMZ's use of Rihanna assault photo

Rihanna's dad calls leaked police photo 'terrible and disturbing'

Photo: This is NOT a photo of Chris Brown at court. His attorneys would never have allowed him to dress like this. Credit: WireImage

Posted by:Elizabeth Snead