Margot Robbie’s Harley Quinn and 9 Other Popular Halloween Costumes

From Margot Robbie’s chaotic Harley Quinn to timeless classics like witches and vampires, this year’s most popular Halloween costumes are all about bold colors, nostalgic throwbacks, and pop culture flair. Every Halloween brings its own wave of trending costumes, and 2025 is no different. While Margot Robbie’s Harley Quinn continues to reign supreme as a fan favorite, thanks to her instantly recognizable pigtails, baseball bat, and “good girl...