Taylor Swift dresses as Olaf from Frozen and sings 'Let It Go' with Idina Menzel

Because why wouldn't you want to pretend to be a snowman on Halloween?

Taylor Swift and Idina Menzel perform 'Let It Go' in Tampa, Florida (Taylor Swift/Instagram)

Proving that you aren’t afraid to make a fool out of yourself on Halloween isn’t unusual, but Taylor Swift’s decision to dress as Olaf the snowman from Frozen and sing “Let It Go” with Idina Menzel was one of the holiday’s more bizarre happenings.

The combination of Tay and the hit Disney movie on stage in Florida was simply too much for some fans, who soon flooded Twitter with gushing messages and weeping emojis declaring that they “literally cannot deal with this”.

Swift has been making a habit of inviting high-profile guests to join her on the 1989 tour, but Saturday night’s performance easily took the prize for best so far.

Menzel appeared in a sparkly blue Elsa dress while Swift’s outfit came complete with an orange carrot nose.

“Frozen totally happened tonight and 55,000 people sang ‘Let It Go’ so loudly, it nearly took my breath away,” Swift wrote on Instagram, while Menzel thanked the 25-year-old for giving her “an out of body experience”.

In other, less wintery Swiftie news, she has joined Adele, Celine Dion, Bruce Springsteen and Fleetwood Mac in having an album spend its whole first year in the Billboard chart’s top ten.