Zendaya Gushes Over Taylor Swift's 'Bad Blood' Video: 'She's Just a Genius'

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Zendaya might be one of many, many friends in Taylor Swift's "Bad Blood" music video, but she's not holding back about the clip's epic appeal.

Speaking with Entertainment Tonight's Cameron Mathison on the red carpet at the Billboard Music Awards, the 18-year-old actress opened up about her time as "Cut-Throat" on the set of Swift's highly anticipated music video.

"She's just a genius," Zendaya said of her pal. "She's so smart. People are going to be blown and are going to be obsessed with [the video]. I don't know how they're going to think about anything else!"

WATCH: A Who's Who Guide to Taylor Swift's 'Bad Blood' Video

Zendaya isn't the only star lending her bad-assery to the video -- Swift has teased an A-list cast of singers and actresses on her Instagram, including besties Lena Dunham, Selena Gomez, Lily Aldridge, Hayley Williams, Hailee Steinfeld, and Cara Delevigne, plus Cindy Crawford, Ellen Pompeo and Mariska Hargitay. You know, to name just a few.

And with Swift at the center of a very powerful group of ladies, there was no room for egos on set -- only fun!

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"She's so open and wants everyone to have fun together," Zendaya said of the star-studded shoot. As for rumors about the subject of the song – namely, Katy Perry -- Zendaya says that she "had no idea" about a supposed feud between the pop stars. "For me, it was just a cool experience ‘cause [Taylor] asked me to be a part of it."

"Bad Blood" debuted on Sunday at the top of the Billboard Music Awards broadcast.