Taylor Swift has vowed to never talk publicly about fellow pop star Katy Perry amid rumours of a raging feud between the two singers.

Speculation about a spat between the two stars emerged last year (14) after Swift took a swipe at an industry rival in a song titled Bad Blood, and Perry appeared to hit back by sending out a cryptic tweet referencing the bullies in 2004 film Mean Girls.

However, Swift is adamant she will not fuel gossip about the rumoured feud and has promised never to talk about Perry in interviews, telling the U.K.'s Telegraph Magazine, "I'm not giving them anything to write about. I'm not walking up the street with boys, I'm not stumbling out of clubs drunk. But I'm never going to talk about her in my interview. It's not going to happen."

The Love Story singer goes on to insist she does not always live up to her 'nice girl' image, adding, "It's not real if someone appears to never have any issues with anyone. I have my friends, I have enemies. I have bad days... I'm not going to be nice all the time but I try not to be carelessly rude to people who don't deserve it.

"When I'm with my friends, we don't say glowing things about everybody. We're not sitting around going, 'You know who's really special and wonderful?' That's not what we talk about - we're normal girlfriends."