Singer Rihanna has posed topless for a great cause. RiRi strips down nude again and sports a platinum blonde bob wing with bangs for her latest MAC Viva Glam ad shot by the fashion duo of Inez & Vinoodh.

Rihanna Poses Topless in MAC Viva Glam Campaign by Inez & Vinoodh

All proceeds from the MAC Viva Glam lipstick will go to the MAC AIDS fund to support those affected by HIV/AIDS. The limited edition lip stick will be available this month.

Rihanna

Earlier this week Rihanna rocked a bright pink lip and finger curls as she celebrated New Year’s Eve with a private dinner party in New York City with friend Cara Delevingne. The British supermodel also has her own big news, as she is starring in the Mulberry’s Spring 2014 campaign.