Popsugar Entertainment Halloween Costumes 2021 The Best Pop Culture Halloween Costume Ideas For 2021 60 of the Best Pop Culture Halloween Costume Ideas For 2021, From Marvel Heroes to Cruella de Vil 9 September 2021 by Alessia Santoro View On One Page Photo 54 of 56 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 54 John B From Outer Banks What to wear for John B: Channel John B by wearing a colourful shirt that's pretty much all the way unbuttoned. Pair it with casual shorts and flip flops, and don't forget the black eye! Previous Next Start Slideshow Halloween Costumes 2021Halloween Costumes For MenGroup Halloween CostumesDisney Halloween CostumesHalloween Costumes For WomenCouple Halloween CostumesPop Culture Halloween CostumesMoviesHalloween CostumesHalloween