She may have accidently revealed the "top secret" fashion news after she posted a picture of herself on her Twitter account.
In the image Rihanna is seen wearing nothing more than a white towel draped over her top half, with the notable addition of some Chanel necklaces hanging from her neck.
"And that's a #wrap on my shoot for my new #topsecret add campaign!!! #2013 #phuckyobasic, (sic)" Rihanna captioned the photo.
In the image, the star also sports bright red lipstick, with red nail varnish painted on her fingers.
The notable inclusion of Chanel branded accessories and their trademark rouge colour hints that Rihanna was shooting images for the French luxury label.
It is not yet known which division of the global fashion company Rihanna could be fronting, but beauty is said to be a contender as a result of a further snap the 24-year-old posted showing a close up of her perfect smokey eyes and made-up lips.
This picture was accompanied by Rihanna's caption stating that renowned fashion photographer Mert Alas was responsible for the shoot.
Mert has worked with a variety of A-list females such as Lady Gaga and Victoria Beckham in the past.
If Rihanna is confirmed as Chanel's latest ambassador it will follow a string of recent fashion triumphs for the singer.
These include her River Island high street design debut announcement and accompanying catwalk fashion showcase.