After news broke that Taylor Swift was throwing shade at Katy Perry on her track, 'Bad Blood,' it looks like the 'Dark Horse' singer wants some revenge with a little help from her gal pal, Rihanna.

According to HeatWorld, the two singers are reportedly masterminding a plan of attack against Swift at the 2014 MTV Europe Music Awards on Nov. 9. Apparently they'll be causing a commotion during the country singer's entire performance at the awards show -- even making fun of her dance moves.

“She and her friends, including Rihanna, are planning on totally embarrassing [Taylor] at the awards in front of the world,” a source told HeatWorld. “They’ve even said they’re just going to talk all the way through her performance and make fun of her dance moves, like Rihanna did to Ariana Grande [21] at the iHeartRadio Awards."

Seems like Swift, who recently released the video for 'Shake It Off,' has already heard about this plot to damage her set. According to a source, she's worried about what's going to happen and has tried contacting Perry, who hasn't responded to her outreach. "And if she does try to speak to them and pretend things are OK, they’ll walk in the opposite direction, ruining any plans Taylor might have to make it look like it’s all fine," the source revealed.

Guess we'll have to wait until Nov. 9 when the EMAs air to see if how this drama pans out.

See 20 Singers' Real Names Revealed