Rihanna Launches New Mac Cosmetics Installation Viva Glam

Rihanna looks red hot while leaving a party held during fashion week on Sunday evening (September 7) in New York City.

The 26-year-old singer also wore a more revealing outfit that same night while attending the Versus Versace show in a white crop top and a pink skirt.

Rihanna celebrated the launch of her new Mac Cosmetics installation Viva Glam.

“My second #VIVAGLAMRihanna installation is released TODAY!!! Get it as soon as we’re LIVE online at MACcosmetics.com #MACgirlMONDAY,” Rihanna tweeted. “Stay ahead of the trend this fall season with the new MACxRiRi collaboration #VivaGlamRihanna2″

25+ pictures inside of Rihanna celebrating at fashion week events…