Singer Chris Brown has recorded a song with his girlfriend, Rihanna, just days after charges were filed against him for allegedly assaulting her, a source close to the record’s producer, Polow Da Don, said Thursday. A music producer says Rihanna recorded a duet with Chris Brown, who is accused of assaulting her. The source, who did not wish to be named because she was not authorized to speak on the matter, did not have any further details. “My heart goes out to both Chris and Rihanna for what has happened in the past,” Da Don said in a statement. “They are both great artists to work with, and I wish them well.” The Los Angeles, California, district attorney filed two felony counts against Brown, 19, last week relating to a February 8 incident in which police said he assaulted Rihanna, 21. A police statement said the incident began when Rihanna, whose full name is Robyn Rihanna Fenty, found a text message on Brown’s cell phone from “a woman who Brown had a previous sexual relationship with,” according to court documents released last week.