Credit: Rick Diamond/WireImage

Update: Chris Brown turned himself in to the Los Angeles Police Department for questioning in his alleged role in a felony battery that took place in a car early Sunday morning. He has been released on $50,000 bail and given a March 5 court date. On Monday morning, TMZ reportedthat the crime report lists the alleged victim’s name as Robyn Fenty: Rihanna’s real name. EW first broke the story after hearing that the duo was involved in a car accident.

Rihanna and Chris Brown have scratched their performances in tonight’s Grammy Awards after being involved in a car accident, according to sources backstage.

Details are sketchy, but Rihanna’s publicist issued a statement late this afternoon saying that the Grammy-winning pop singer was “well” and thanked fans for their concern and support.

Legendary R&B performer Al Green has been added to the roster of tonight’s perfomers to fill out the bill.

Rihanna is nominated in three categories this year, including Best Dance Recording for “Disturbia”; Brown received two nominations, including Best Male R&B Vocal Performance for “Take You Down.”

Stay tuned for details.

Whitney Pastorek and Margeaux Watson contributed to this report.