Rihanna will face her ex-boyfriend Chris Brown in court when his criminal threats case goes to trial, according to reports.

The R&B singer was arrested and charged following an alleged attack on the Umbrella hitmaker after a pre-Grammys party on February 8.

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The pair has both gone into hiding since the incident, with Rihanna only surfacing in public en-route to her 21st birthday celebrations in Hollywood last week.

Rihanna and Brown have released separate statements via their representatives, but both have refused to comment on the alleged fight at the request of authorities investigating the case.

But the Bajan beauty - whose injuries were shown in a leaked photo to TMZ.com - will have to take to the stand once Brown faces the charges in court on March 5, according to the New York Daily News.

A source tells the publication, "She'll be there - she has to testify."

(This news article provided by World Entertainment News Network)