Taylor Swift Spent Halloween As Olaf From Frozen & She Had Alessia Cara AND Idina Menzel With Her On Stage!

So fun!
Taylor Swift had a concert on her 1989 World Tour in Tampa, Florida on Halloween night, and she celebrated in such a fun way!
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She took to the stage as Olaf from Frozen, in an adorable costume, as you can tell in the video (below)!!!

So cool! And if that wasn’t enough, she also brought Idina Menzel and Alessia Cara out on stage to help her perform during the concert! Ch-ch-check out some of Tay-Tay’s Instagram shots (below)!!!