The Talk That Talk singer - who has raised eyebrows over her decision to rekindle her friendship with Chris after he assaulted her in 2009 - tweeted the track list for her new album Unapologetic, and it includes a track called Nobodies Business, featuring the RnB star.
Rihanna recently opened up to Vogue about the situation, saying "the world hasn't let go".
She told the magazine: "To the world, I feel like there's no closure. There's some obsession that's continued even throughout when we weren't friends or couldn't be friends at all. Hated each other. The world hasn't let go. They haven't seen any progress in our friendship, because they don't see anything.
"So now it's a bit of a fascination, I guess. But they're not on the inside. They can't see what I see, unless they're sitting in my point of view. I guess I'll learn to accept that."