The 'Bad Blood' singer shared this rather picturesque image to Instagram over the weekend, showing the happy couple cruising down the Thames just past Tower Bridge.
Joining the loved up couple on their evening cruise were rumoured couple Joe Jonas and Gigi Hadid and supermodel Karlie Kloss.
How much fun does Karlie appear to be having?!
Taylor joked in her Instagram photo caption: "Little known fact: Karlie is secretly an unofficial historian/London tour guide. Kind of."
It was a chilled night out for Taylor after her massive performance at British Summertime in Hyde Park the night before, where she performed to a crowd of around 65,000.
She shared her big moment with her girlfriends, bringing Gigi, Karlie, Kendall Jenner, Cara Delevingne, Martha Hunt and Serena Williams out on stage with her.
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