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 38 of 71 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 38 Olivia Rodrigo at the White House What to wear: Olivia Rodrigo headed to the White House in July to speak on COVID-19 vaccinations, and her Elle Woods-esque tweed suit was a crowd-pleaser. To get the look, find a pink tweed suit and pair it with a teeny black handbag. Previous Next Start Slideshow HalloweenHalloween CostumesPop Culture Halloween CostumesHalloween Costumes 2021Best Of 2021Halloween Costumes For MenHalloween Costumes For Women