Rihanna stepped out on Tuesday night as MAC's Viva Glam Cosmetics ambassador, showing her support in the fight against AIDS at the premiere of Andrew Jenks' new documentary It's Not Over.
"[I'm] very excited, very honored [to be here]," she said. "This is gonna be an amazing event for an amazing cause, an amazing film. This documentary, It's Not Over, is really gonna be educational for the youth [with] what's going on and how they're affected by HIV/AIDS all over the world."
The film, which premieres on Netflix and Pivot on Nov. 19, follows three young people from different corners of the world who are affected by HIV/AIDS.
"I think a lot of people from my generation, including myself, didn't realize that the epidemic was in such a dire state," filmmaker Jenks told ET. "So it was a great challenge to take on and then to be able to film all over the world and get to know all these different people -- it's important."
MAC AIDS Fund chairman and group president John Demsey, who hit the red carpet alongside Rihanna, told ET that the "Pour It Up" singer is "the most successful MAC Viva Glam spokesperson the brand has ever had." Added Nancy Mahon, MAC AIDS Fund global executive director: "Young people listen to Rihanna. She's a rock star... The bottom line is we need young people to watch this film and we need to create a movement, and she's an incredible fuel in that movement."
To wit: a Tuesday night tweet from @Rihanna had notched more than 2 million retweets and 2.9 million favorites at the time of publication.
On the music front, Rihanna's 2012 release Unapologetic earned her the best-selling debut of her career with 238,000 copies sold in its first week of release. The album has since sold more than one million copies and has been certified Platinum by the Recording Industry Association of America.
Are you excited for Rih's next album?! Be sure to tune in to Entertainment Tonight on Wednesday for more from our interview with Rihanna.