Taylor Swift Sings 'Let It Go' In Olaf Costume with Idina Menzel (VIDEO)

Taylor Swift closed the U.S. leg of her 1989 tour in Tampa, Fla. dressed up as Olaf from "Frozen" and singing "Let It Go" with Idina Menzel. Epic!

This is so awesome. I wish I was there!

https://twitter.com/taylorswift13/status/660692178574929920

https://twitter.com/idinamenzel/status/660827385521131520

"The cold never bothered me anyway." QUICK CHANGE @idinamenzel

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

Happy Halloween!

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

Olaf vibes.

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

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

After the costume change, while the crowd was singing.. Taking it all in with @idinamenzel

A photo posted by Taylor Swift (@taylorswift) on Nov 1, 2015 at 3:59am PST