Taylor Swift Dressed as Olaf to Sing “Let It Go” With Idina Menzel

On the last U.S. leg of her 1989 World Tour, Taylor Swift pulled out all the Halloween stops for the crowd– including dressing up as the beloved Olaf from “Frozen” and inviting Idina Menzel out on stage to sing “Let It Go” with her.

Frozen totally happened tonight. And 55,000 people sang ‘Let it Go’ so loudly, it nearly took my breath away. Good times, @idinamenzel ☃

A photo posted by Taylor Swift (@taylorswift) on Nov 1, 2015 at 1:14am PST

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“The cold never bothered me anyway.” QUICK CHANGE @idinamenzel

A video posted by Taylor Swift (@taylorswift) on Oct 31, 2015 at 10:23pm PDT

Taylor even left the costume on for another song, while her backup dancers were dressed as reindeer.

Happy Halloween!

A video posted by Taylor Swift (@taylorswift) on Oct 31, 2015 at 10:24pm PDT

From the looks of it, Taylor will probably be wearing the costume again soon. She definitely had a lot of fun as Olaf.

Olaf vibes.

A photo posted by Taylor Swift (@taylorswift) on Oct 31, 2015 at 10:25pm PDT

Image Source: Instagram