Rumor has it that Taylor Swift's next video is going to be the biggest culmination of best friends of all time. Photos from the set of "Bad Blood" show Cara Delevingne, Kendrick Lamar, Hayley Williams and Zendaya getting in costume.

It's also rumored that Kanye West remixed "Bad Blood" with producer Ariel Rechtshaid, who's close with Swift's BFFs Haim. But Taylor shot that down.

Swift and Co. were spotted shooting the video in Los Angeles on Sunday. Hayley wore her hair in a bright orange bob with contoured cheeks and super-dark eye makeup. She wore a cutout blue metallic dress.

Taylor donned extensions, gathering her new hair into a long pony. Her eyes were made up to look equally as sly. She and Zendaya were snapped wearing white robes.

Cara attended the MTV Movie Awards that night but that morning she posted an Instagram teasing her appearance while also wearing a bandana and robe, the same outfit the paparazzi caught her in.

As for the theme of the video? We're thinking it's a futuristic tale of friendship (and ex-friendship) a la Britney Spear's "Toxic." What do you think? Tell us in the comments.