BBMAS Taylor Swift's 'Bad Blood' Video: Here's Everything We Know

Fans haven't seen a single second of Taylor Swift's "Bad Blood" video yet, but what we do know about the highly anticipated project is piling up.

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We're running down everything we know so far about the "Bad Blood" music video before it premieres during the Billboard Music Awards on Sunday night at 8 p.m. ET.

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First of all, what a cast. Here are all the pictures Swift has tweeted out so far from the celebrity cameo-filled vid:

Swift also shared that each member of her squad came up with their own alter ego name (something we should have suspected as soon as America's favorite cat lady dubbed herself CAT-astrophe).

Fans have also gotten a couple of sneak peeks at the ladies filming the top-secret video, which, if these pictures are any indication, seem to show a futuristic vibe (see that hair and makeup) to the hush-hush video.

Taylor Swift on the set of "Bad Blood" on April 12, 2015. Miguel Aguilar/PacificCoastNews

Swift originally explained about the song: "For years, I was never sure if we were friends or not," she told Rolling Stone about the unnamed female celebrity. "She would come up to me at awards shows and say something and walk away, and I would think, 'Are we friends, or did she just give me the harshest insult of my life? [Then last year] she did something so horrible. I was like, 'Oh, we're just straight-up enemies.' And it wasn't even about a guy!...So now I have to avoid her. It's awkward, and I don't like it."

Fans quickly surmised that the catchy tune may have been inspired by Katy Perry, who furthered the rumors herself when she tweeted, "Watch out for the Regina George in sheep's clothing..."

Will Perry be watching Sunday night? We know we will.