When we thought that Taylor Swift was done introducing every famous friend she's recruited for her upcoming video for "Bad Blood," she revealed -- Gigi Hadid.

The 1989 pop star shared the news with fans on Instagram on Saturday morning (May 9). The 20-year-old model is looking fierce with her hair tied back into a high ponytail and dressed in what looks like a black patent leather bra and long sleeved and high collared leather cropped bolero to cover her arms. She rests her hands on her hips and looks away as if she's searching for her next target.

Gigi joins Taylor's group of badass girls who look like they're ready to bite if you get in their way including Paramore frontwoman Hayley Williams who will play The Crimson Curse and Zendaya as Cut-Throat.

The black, white and red graphic film posters also show that the video was produced by Taylor herself and directed by Joseph Kahn. This is the second time Joseph and Taylor have worked together as he also directed her "Blank Space" visual. And with his seasoned history making videos for many of music's big stars including Britney Spears, Katy Perry, the Backstreet Boys and the late Aaliyah, this Sin City-esque video is definitely in some good hands.

While we're finding out all the big young stars who'll be in this video, one question remains -- who'll be playing the villian? Considering the song is about Taylor's issues with Katy, we're curious to see if there will be a Perry-like person to play the bad guy. Guess we'll have to tune in to the Billboard Music Awards on Sunday May 17 at 8PM ET on ABC to find out how it all unfolds.

See Celebrity On-and-Off Couples