Swift shared the track with her Twitter followers Thursday (Oct. 1) and noted she was "getting pirate ship/sword fight movie scene vibes" from the cover and is "happy about it."
Listen to it here:
On his YouTube post, Tin explains that he met Swift at one of her Los Angeles Staples Center dates in August and "was completely blown away."
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"After listening to her perform 'Bad Blood', I had an idea for a way to turn her song into an orchestral piece," he writes. "And so I spent a few days putting together this (rather epic) arrangement for full orchestra."
Tin even shared a photo of he and the pop star together at the concert: