Rihanna in Stella McCartney T-shirt

Red Nose Day will take place on 15 March 2013, and the celebrities have already flocked to show their support. While One Direction have provided the official charity single, everyone from Fearne Cotton to Kate Moss have modelled this year's charity T-shirts by Stella McCartney, and now Rihanna has slipped into one of the designs.

Stella McCartney posted a snap of RiRi in the same tee worn by Kate Moss in the promotional snaps, featuring a black and white snap of Marilyn Monroe Photoshopped with comedy glasses and a red nose.

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The snap, which shows Rihanna modelling the tee with bare legs and her eyes closed, was captioned: "Thank you @Rihanna for supporting @rednoseday! You're the best x Stella #RND"

Get your own Red Nose Day tee at TK Maxx.