Watch: Taylor Swift’s 1989 Tour Performs ‘Frozen’ For Halloween With Surprise Guest

Taylor Swift went as a few characters for Halloween last night, but none was as good as her multiple costume changes and singing along-side Idina Menzel for a badass Frozen performance during her 1989 Tour.

Menzel was definitely the surprise highlight of the evening and fans were blown away by the guest, with Menzel tweeting about it to appease her Twitter followers:

Even grown-ass adults like me love some Frozen action.

[Vanity Fair]