It turns out he also did a couple verses for the remix of the 1989 track, which was what was used in the video. Check out the visuals for 'Bad Blood' remix.
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Among the other celebrities present in the video were Gigi Hadid, Ellie Goulding, Hayley Williams, Zendaya, Lily Aldridge, Lena Dunham, Selena Gomez, Hailee Steinfeld, Cara Delevingne, Jessica Alba, Cindy Crawford, Ellen Pompeo and Mariska Hargitay.
Taylor Swift and Kendrick Lamar have been hinting at working together for some time. What do you think about the collaboration?