Cara Delevingne is the 15th person announced to be in Taylor Swift's upcoming music video for "Bad Blood." Taylor unveiled the teaser photo today (May 15), letting the world know that Cara chose the corniest moniker so far: "Mother Chucker."

Cara's appearance in the video was all but confirmed back in April, when a few shady photos were first released online. So we've been waiting for Cara's poster to be revealed, but we didn't think there would be 14 others unveiled before we got to hers. The build-up for this video is intense, setting some very high expectations. Also, why is there no actual trailer for the video? Why are you doing this to us, Taylor?

Yesterday Taylor announced that the human inspirations behind her cat's names would also star in the video. Ellen Pompeo and Mariska Hargitay --who play fictional characters Meredith Grey and Olivia Benson, respectively -- have their own "Bad Blood" alter egos. Honestly, that felt like a grand finale since it was the most unexpected (and, somehow, the coolest yet) so we feel like Taylor may have dropped the ball as far as order of release is concerned. But whatever: It's Taylor's world, and we're just living in it.

Here's a head count of the rest of the "Bad Blood" cast, so far: Kendrick Lamar, Lena Dunham, Zendaya, Lily Aldrige, Martha Hunt, Karlie Kloss, Hayley Williams of Paramore, Jessica Alba, Serayah McNeill, Ellie Goulding, Gigi Hadid and Hailee Steinfeld. Whew!

The Joseph Kahn-directed "Bad Blood" video will premiere on Sunday May 17 during the 2015 Billboard Music Awards.

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