EntertainmentCelebrities Taylor Swift rounds up celeb BFFS for 'Bad Blood' video Kendrick Lamar stars in the "Bad Blood" video. Photo Credit: Taylor Swift/Twitter By WILL MENDELSON [email protected] May 11, 2015 2:39 PM Print Share fbShare Tweet Email Taylor Swift has very famous friends, and she wants to make sure you know that. As teasers for her upcoming music video for her new single "Bad Blood," Swift, 25, has been tweeting posters of her famous friends in their "Sin City"-esque character posters. So which famous friends do these include? So far, Lily Aldridge, Zendaya, Lena Dunham, Gigi Hadid, Hayley Williams, Ellie Goulding, Hailee Steinfeld and Kendrick Lamar have all appeared in their own posters. And knowing Swift and her surprises, it's likely more will be added before the video's premiere on Sunday at the Billboard Music Awards. But seriously, at this point, who hasn't been cast in her video, we wonder? By WILL MENDELSON [email protected] Share on Facebook Share on Twitter Comments We're revamping our Comments section. Learn more and share your input.