Rihanna Nipple Ring: Wardrobe Malfunction, Sheer T-Shirt Reveals Body Accessory (PHOTO)

Rihanna is featured in yet another racy picture for another fashion designer. The Bajan beauty wore a Red Nose Day t-shirt to show her support for the British charity Comic Relief but she chose to wear it with nothing else.

The Diamonds singer was bra-less so the t-shirt's sheer fabric revealed Rihanna's body piercing- a nipple ring on her right breast.

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The Red Nosy Day t-shirt Rihanna wore features an iconic black-and-white image of Marilyn Monroe wearing a pair of comedy oversized glasses and the signature big red nose. It was created by British fashion designer Stella McCartney, the daughter of Beatles' singer Paul McCartney.

Stella posted the risque photo of Rihanna on Twitter with the caption: "Thank you @Rihanna fdor supporting @rednoseday! You're the best x Stella #RND".

Rihanna is the latest in a line of celebs who have worn a Red Nose Day t-shirt to support Comic Relief.

Cameron Diaz and Kate Moss are just a few other stars that have used their celebrity to provide support for the campaign.

BBC One will air Comic Relief on Red Nose Day, Friday March 15.

Rihanna posted a racy picture of herself on Instagram earlier this month. She posed topless while wearing a gifted pair of custom Prada thigh-high boots, but with just a white thong and suspenders.

She thanked Prada's head designer Miuccia Prada for the gift in the photo's caption, saying, "Gotcha b*tch tip toeing on my marble flo'!!!Sick a** custom Prada boots! Miuccia you RULE!!! Thank you.

The singer explained in her ELLE UK'sinterview why she chooses to document the most intimate aspects of her life on the social media site.

"I Instagram everything about my life, whether it's smoking pot, in a strip club, reading a Bible verse - how crazy, I know! - or hanging out with my best friend, who happens to be Chris,"Rihanna admitted.