Popsugar Entertainment Gossip Girl Gossip Girl Costume Ideas Spotted: Nostalgic Gossip Girl Halloween Costumes October 25, 2017 by Laura Marie Meyers View On One Page Photo 6 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Jenny Humphrey What to wear: Black on black with a side of black. Don’t forget your blond extensions and dark eyeliner. How to act: Like a troubled teen who has lost her way. Previous Next Start Slideshow Gossip GirlHalloweenNostalgiaHalloween CostumesTV