Trick or treat or a Taylor Swift Halloween celebration?
As millions of Americans celebrated the spooky holiday Monday night, Taylor gathered a few familiar faces together for a fun night indoors.
To the delight of many Swifties, the "Shake It Off" singer and her gal pals did not disappoint as they posed in clever and unique costumes.
"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 ," she captioned the photo. "Happy birthday @kennedyrayee WE LOVE YOUUUUUU."
For those who need a closer look, we spy Fifth Harmony singer Camila Cabello paying tribute to Taylor's beloved cat with a "Meredith is missing" sign. And supermodel Gigi Hadid is exchanging world-famous designer looks for suspenders and a red bandanna.
"#HusbandUpgrade," the Gossip Girl alumna wrote in the comments section.
Taylor would later add, "Thanks @vancityreynolds for this costume, you're the BEST Deadpool inside contact ever."
Just last year on Halloween night, Taylor was traveling the country as part of her 1989 Tour. When performing at Raymond James Stadium in Florida, the "22" singer introduced the crowd to Idina Menzel. Oh, and did we mention they were dressed in Frozen costumes?
"'The cold never bothered me anyway.' QUICK CHANGE @idinamenzel," Taylor joked on social media after the Halloween performance. Idina added, "Thank you @taylorswift! That was definitely an out of body experience. Or out of Elsa's body experience! #1989tourtampa."