Time to Let It Go! Taylor Swift dresses as snowman Olaf to duet with Frozen's Idina Menzel as Elsa for finale of U.S. tour

Taylor Swift had a right Olaf with Idina Menzel in Florida on Saturday night.

The 25-year-old brought her 1989 U.S. tour to a close with a Frozen Finale especially for Halloween.

Dressed as the lovable snowman, she brought Menzel out on stage as ice queen Elsa before the two belted out the films ubiquitous anthem Let It Go.

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Frozen finale: Taylor Swift dressed as Olaf and sang Let It Go with Idina Menzel's Elsa as she concluded US tour in Florida on Saturday night

Frozen finale: Taylor Swift dressed as Olaf and sang Let It Go with Idina Menzel's Elsa as she concluded US tour in Florida on Saturday night

But the two didn't stay in costume for very long as they pulled of some impressively swift outfit changes.

As they let the audience finish the song with a rousing 'the cold never bothered me anyway', Taylor ripped her plump body and hapless head off to reveal her tiny signature sequinned dress.

The 44-year-old Menzel meanwhile need a little assistance from two reindeer to whip off her Arendelle attire, stepping out in a sexy pair of tight black trousers and corset top.

See the latest news on Taylor Swift and her dressing as Olaf for a duet with Idina Menzel 

Wanna build a snowman? Dressed as the lovable snowman, she brought Menzel out on stage as ice queen Elsa before the two belted out the films ubiquitous anthem Let It Go

Wanna build a snowman? Dressed as the lovable snowman, she brought Menzel out on stage as ice queen Elsa before the two belted out the films ubiquitous anthem Let It Go

Swift change: But the two didn't stay in costume for very long as they pulled of some impressively swift outfit changes

Swift change: But the two didn't stay in costume for very long as they pulled of some impressively swift outfit changes

Out of body experience:Swift also posted a snap of the two, back-to-back, as they listened to seemingly every single person in Tampa's Raymond James stadium recite the words verbatim

Out of body experience:Swift also posted a snap of the two, back-to-back, as they listened to seemingly every single person in Tampa's Raymond James stadium recite the words verbatim

'Frozen totally happened tonight. And 55,000 people sang 'Let it Go' so loudly, it nearly took my breath away. Good times, @idinamenzel,' Taylor wrote in an Instagram snap of the moment. 

'Thank you @taylorswift! That was definitely an out of body experience. Or out of Elsa's body experience! #1989tourtampa,' Menzel replied on her own account.

Swift also posted a snap of the two, back-to-back, as they listened to seemingly every single person in Tampa's Raymond James stadium recite the words verbatim. 

Say the Floridians: The duo let the audience finished the song with a rousing 'the cold never bothered me anyway'

Say the Floridians: The duo let the audience finished the song with a rousing 'the cold never bothered me anyway'

Off with her head: Taylor then ripped her plump body and hapless head off to reveal her tiny signature sequinned dress

Off with her head: Taylor then ripped her plump body and hapless head off to reveal her tiny signature sequinned dress

Let it go: The 44-year-old Menzel meanwhile need a little assistance from two reindeer to whip off her Arendelle attire, stepping out in a sexy pair of tight black trousers and corset top

Let it go: The 44-year-old Menzel meanwhile need a little assistance from two reindeer to whip off her Arendelle attire, stepping out in a sexy pair of tight black trousers and corset top

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

Taylor's tour has been littered with surprise special guests including Mick Jagger, Ricky Martin, Pitbull, Ellie Goulding, Miranda Lambert, Keith Urban, Nelly, Steve Tyler, Leona Lewis, Wiz Khalifa, Avril Lavigne, Selina Gomez, Justin Timberlake, Beck, John Legend, Alanis Morissette, Fetty Wap, Mary J Blige, Jason Derulo, Lorde, Nick Jonas, Haim, The Weeknd, Jason Derulo, Imagine Dragons, and even Phoebe Buffet from Friends.

But she may have given away who her final US guest would be when she sang Style dressed as the summer loving snowman from Disney's 2013 megahit.

Taylor has just 12 dates and left on the world tour: two in Singapore, three in China and the remaining seven in Australia.

Guess who? She may have given away who her final US guest would be when she sang Style dressed as the summer loving snowman from Disney's 2013 megahit

Guess who? She may have given away who her final US guest would be when she sang Style dressed as the summer loving snowman from Disney's 2013 megahit

More guests: Taylor also performed with Allesia Cara on the night

More guests: Taylor also performed with Allesia Cara on the night

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