Popsugar Celebrity Halloween Costumes 2019 Pictures of Halsey's Halloween Costumes Over the Years From Princess Leia to Poison Ivy, Halsey Goes All Out With Her Halloween Costumes 31 October 2019 by Monica Sisavat Solís View On One Page Photo 11 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 Halsey Dressed as Princess Leia From Star Wars in 2017 Previous Next Start Slideshow Halloween Costumes 2019HalseyCelebrity Halloween CostumesCelebrity TwitterHalloween CostumesHalloween