Popsugar Celebrity Diy Halloween Costumes 100+ Pop Culture Halloween Costume Ideas 500+ Pop Culture Halloween Costume Ideas That Will Make 2019 the Best Halloween Yet 27 October 2019 by Laura Marie Meyers View On One Page Photo 197 of 562 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 197 Fat Amy From Pitch Perfect What to wear: A short-sleeved skirt-suit and a bandanna around your neck. Grab a cordless microphone. How to act: Add the word "aca" to everything and sing whatever you say. Previous Next Start Slideshow DIY Halloween CostumesHalloween Costumes For MenGroup Halloween CostumesHalloween Costumes For WomenCouple Halloween CostumesPop Culture Halloween Costumes