Rihanna Comes Clean About The Chris Brown Song 'Cold Case Love' feat. Justin Timberlake

Listen: Rihanna - Cold Case Love ft. Justin Timberlake

Rihanna has explained the song she wrote about her former lover Chris Brown, insisting the lyrics detail everything she "didn't say for the past eight months." The Umbrella beauty split from the singer last year shortly after a vicious fight with Brown that left her battered and bruised. He was later convicted of attacking her.

Rihanna eventually told her side of the story in a string of TV interviews several months after the incident, and has revealed working on her new album, Rated R, allowed her to "vent" about the break-up.

Now she admits one of the songs - Cold Case Love, a collaboration with Justin Timberlake - is about the bust-up with Brown.

She tells CNN, "It's a song that everybody wanted to hear, everything that I didn't say for the past eight months, exactly how I felt about that relationship and how I feel about it now - that song says it all."