CHRIS BROWN FACING 2 FELONY CHARGES…FACES BETWEEN PROBATION AND 4YRS IN JAIL

Chris Brown

R&B singer Chris Brown will be charged with two felonies later today after he allegedly assaulted his songstress girlfriend Rihanna during a vicious fight last month, authorities said.

Brown, 19, who is expected to be arraigned later this afternoon in LA, will be charged with "assault by means likely to cause bodily injury" and making a "criminal threat," prosecutors said.

If convicted, Brown faces a possible sentence ranging from probation to four years and eight months behind bars, prosecutors said.

LA cops busted Brown for allegedly beating Rihanna, 21, on Feb. 8 following a pre-Grammy party.

The felony complaint identifies Brown's alleged victim only as "Robyn F." Rihanna's real name is Robyn Fenty.

Brown is accused of repeatedly punching Rihanna to the point where she almost lost consciousness and blood splattered all over her clothes - then threatened to "kill" her once "they got home," according to a 11-page police report seeking a search warrant.

In reaction to the charges, Rihanna's dad, Ronald Fenty, told Us magazine's Web site that "justice can never be served in this situation. He can't feel the pain she felt."

He also called Brown "a very talented guy" - but still think he's "a little immature for Rihanna."

Despite the brutal assault, the clean-cut singer has won back his battered gal pal after a weekend of fun and sun at P. Diddy's island home near Miami.

Brown was originally only booked for making a verbal threat - although a shocking LAPD crime photo showed Rihanna with a horrifically bruised and cut face.

According to LAPD, the fight broke out after Rihanna read a text message on her boyfriend's phone from a "woman who Brown had a previous sexual relationship with," according to the paperwork.

That's when an argument erupted and Brown allegedly tried to force Rihanna out of the car, but couldn't because she was wearing her seat belt.

The warrant shows that Brown then shoved Rihanna's head against the passenger window.

When Rihanna turned to face him, Brown punched several times in the face and mouth as while driving, according to the report.

As a result, blood spattered all over Rihanna's clothing and on the car's upholstery.

That's when Brown allegedly told Rihanna, "I'm going to beat the sh- out of you when we get home. You wait and see."

Rihanna frantically called her assistant and left a message saying, "I am on my way home. Make sure the cops are there when I get there."

Brown then barked, "You just did the stupidest thing ever. I'm going to kill you."

He then threw Rihanna's phone out the car window.

According to the report, Brown continued to punch Rihanna, bit her on the ear, her fingers and put her in a headlock to the point when she almost lost consciousness.

A message left for Brown's lawyer Mark Geragos was not immediately returned.

Brown's publicist Tony Knight said any statement would likely come from Geragos after the hearing