The 'Umbrella' singer is yet to speak about her volatile relationship with the 20-year-old singer – who recently pleaded guilty to assaulting her and was sentenced to five years probation and six months community labour - for the first time in a track on her upcoming album, as reported.

Songwriter, Ne-Yo, who is working with the 21-year-old singer on the record, said, "Expect an edgier, almost angrier Rihanna on this one. Rihanna says some things on this album that you've never heard her say before."

Rihanna is reportedly planning to sing about the assault, or about the violence which marred her relationship with Brown.

'Lonely' singer Akon is also working with the pop beauty on her new songs, but has no interest in appearing on any of her dark tracks.

"I'm not supposed to say anything but I'm going to work on as many songs as possible with her. I'm going to lighten her up. I don't want an angry Rihanna," Akon said.

In May, it was claimed Rihanna had been writing a song about killing a cheating partner at the time of the assault.