Taylor Swift has called on her famous friends - from Lena Dunham to Kendrick Lamar - to appear in her upcoming video clip.
Over the past week Swift has been tweeting a star-studded series of teaser posters for her video for forthcoming single Bad Blood, set for a May 17 world premiere.
Each poster features a black-and-white portrait of the stars, with the neo-noir style and character names bringing to mind Frank Miller's Sin City.