Following her only performance [1] of 2016, Taylor Swift [2] reunited with her squad to celebrate Halloween [3]. On Monday, the singer shared a handful of Instagram photos from her bash, which brought out Gigi Hadid, Martha Hunt, Lily Donaldson, Emmie Gundler, Camila Cabello, and Kennedy Rayé. Taylor dressed up as Ryan Reynolds [4]'s Deadpool character, while Gigi went as a Cub Scout. Of course, it didn't take very long for pal Blake Lively [5] to take notice of Taylor's costume and leave a comment in one of the snaps. "#HusbandUpgrade," Blake jokingly wrote. In another shot, Taylor gave Ryan a shout-out [6], saying, "Thanks @vancityreynolds for this costume, you're the BEST deadpool inside contact ever."