Popsugar Fashion Halloween Costumes 2018 Rihanna Met Gala 2018 Halloween Costume Ideas Here's Everything You'll Need to Copy Rihanna in All Her Holy Glory at the Met Gala 10 August 2018 by Celia Fernandez View On One Page Photo 1 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 A Full Look at Rihanna's Met Gala Outfit Previous Next Start Slideshow Halloween Costumes 2018Met GalaHalloween CostumesHalloweenRihanna