The 26-year-old singer posed topless for the French magazine Lui, and later proudly posted the finished - and uncensored - product online, reported Huffington Post online.
However, the pictures were swiftly removed from her official Instagram page because they violated the application's rules about nudity, which state: "If you wouldn't show the photo or video you are thinking about uploading to a child, or your boss, or your parents, you probably shouldn't share it on Instagram."
Rihanna was then sent an email from Instagram warning her to keep her clothes on in future or she could find her account permanently shut down.