Popsugar Entertainment Halloween The Best Pop Culture Halloween Costume Ideas For 2021 60+ of the Best Pop Culture Halloween Costume Ideas For 2021, From Squid Game to Ted Lasso October 26, 2021 by Alessia Santoro View On One Page Photo 50 of 63 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 50 Betty From Riverdale What to wear for Betty: Got a high beige turtleneck? Good. Wear that under a green bomber jacket and complete your look with a green plaid skirt. Pull your hair tightly back, and you're ready to roll. Previous Next Start Slideshow HalloweenHalloween CostumesMusicGroup Halloween CostumesCouple Halloween CostumesPop Culture Halloween CostumesTVMoviesHalloween Costumes 2021Halloween Costumes For Men