Ryan Reynolds and Taylor Swift - Lead
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Fact: Taylor Swift excels at squad goals. While we were all out tricking, treating, and partying on Monday, she stayed indoors with her BFFs, who of course happen to be some of the world's biggest supermodels and fellow singers.

We figured Swift would bring it in the costume department for Halloween and she did not disappoint. "Happy Halloween from Deadpool, a Cub Scout, Martha Brady, a space cadet, a granny with a lost cat, black swan, and a birthday girl dressed as a cat," read the caption of her first Instagram post of the evening. She continued, "Happy birthday @kennedyrayee WE LOVE YOUUUUUU,".

Martha Hunt, Gigi Hadid, Lily Donaldson, and Camila Cabello all helped Swift celebrate the fun and festive night. And we all know that her squad is much bigger than what was pictured, thus the celebrity likes and comments started rolling in shortly thereafter. Blake Lively, aka Mrs. Deadpool, was one of the first—responding "#HusbandUpgrade." And the Grammy Award-winning artist's secret to getting such a stellar costume was revealed in her next post. Her caption read "Thanks @vancityreynolds for this costume, you're the BEST Deadpool inside contact ever."

VIDEO: The Best Celeb Halloween Costumes of 2016

Last year at this time, Swift was on her 1989 tour. For the occasion, she was dressed as an equally famous and hilarious character—none other than Olaf from Frozen. "Let It Go" singer Idina Menzel joined her onstage for the momentous occasion.

It's clear the blonde beauty excels at not only #squadgoals, but #costumegoals as well.