By Christopher Rosen
Updated May 10, 2015 at 12:00 PM EDT
Jeff Kravitz/FilmMagic

We’ve been keeping tabs on the list of actresses, singers and models Taylor Swift has assembled for her forthcoming “Bad Blood” video, but this announcement deserves its own post. On Sunday, hours after revealing that Hailee Steinfeld would play The Trinity in the video, Swift tweeted that Lena Dunham would appear as Lucky Fiori.

Swift and Dunham’s best friendship has been well documented before, but it took another turn last week. The singer told Tavi Gevinson in an interview for Elle that she wrote “You Are In Love” about Dunham’s relationship with Jack Antonoff. Which raises the question: Why isn’t Tavi in “Bad Blood” too? Maybe she’ll get a poster on Monday.

For more on “Bad Blood,” head here to see our full rundown of what to expect in the video so far.