Katy Perry to Diss Taylor Swift with Rihanna at Award Function?

It seems things between Katy Perry and Taylor Swift are not cooling down anytime soon. After Swift allegedly dissed Perry in an interview for Rolling Stone by claiming that her song, "Bad Blood" is about a former friend who supposedly tried to steal her backup dancers, the "Firework" singer is reportedly taking the battle further.

It is being said that Perry has joined forces with her friends to diss Swift at an award function.

"She and her friends, including Rihanna, are planning on totally embarrassing [Taylor] at the awards in front of the world,"  OceanUp qouted a source from Heat Magazine. as saying. "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."

It is also reported that Perry and her friends would not speak to her Swift even if she tried to make peace with them, a source told the Website.

Speculations are rife that Swift tried to clear the differences with Perry but the latter was not interested.

"She was constantly trying to get in touch with her, so in the end Katy just blocked her number," the source told Ocean Up. "Embarrassingly, Taylor had no idea and kept on trying, until a mutual friend broke the news. Taylor was fuming, but Katy just finds the whole thing funny."

Interestingly, Perry was spotted going out on a dinner date with Swift's ex Harry Styles and rumours have it that she did it intentionally to make Swift jealous.

However, reports suggested that Perry and Styles did meet up for a dinner at Nobu in Malibu but were just friends, according to Hollywoodlife.

Styles and Swift dated in the fall of 2012 before ending their relationship in early 2013. The two had a messy public break-up. 

Perry, who is currently on her "Prismatic" world tour, was earlier married to actor Russell Brand but it ended in a divorce. She then got into a relationship with John Mayer but it didn't last long.