by Kristen HarrisBuzzFeedBuzzFeed StaffAs a staff writer at BuzzFeed, I write about all things celeb and pop culture. At last night's Met Gala, singer and astronaut Katy Perry wore a Stella McCartney look with a Miodrag Guberinic mask that can only be described in a single word: robot. You can read a full breakdown of the look here. Julian Hamilton / Getty Images The mask could open and close, leading to one red carpet moment becoming a pretty funny meme. Vogue / Via youtube.