Popsugar Living Halloween The Best Halloween Costume Ideas For 2021 We're Calling It Now! Here Are 2021's Buzziest Halloween Costume Ideas September 24, 2021 by Haley Lyndes View On One Page Photo 67 of 71 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 67 Professor Ji-Yoon Kim From The Chair What to wear for Ji-Yoon: Throw a chunky sweater on top of a collared shirt — or pair the blouse with a blazer or duffle coat — a pair of glasses, and trousers. Previous Next Start Slideshow HalloweenHalloween CostumesPop Culture Halloween CostumesHalloween Costumes 2021Best Of 2021Halloween Costumes For MenHalloween Costumes For Women