Taylor Swift has ''no interest'' in making up with Katy Perry.

The 'Blank Space' hitmaker has insisted she has no plans to build a bridge between her and the 'Dark Horse' singer because she ''betrayed'' her so badly.

Appearing to address the feud, she told Vanity Fair magazine: ''I've trusted people before in friendships or relationships and have felt betrayed.

''If you betray your friend, if you will talk about them badly behind their back, if you will try to humiliate them or talk down to them, I have no interest in having a person like that in my life.''

Meanwhile, the 25-year-old beauty previously revealed a few details about how the pair's friendship turned sour.

She said: ''She did something so horrible. I was like, 'Oh, we're just straight-up enemies.'

''And it wasn't even about a guy! It had to do with business. She basically tried to sabotage an entire arena tour. She tried to hire a bunch of people out from under me.''

However, their friendship didn't used to be so bitter.

In 2009, Taylor tweeted: ''Watching the Waking up in Vegas video. I love Katy Perry. I think I'm going to hang her poster on my wall now.''

With the 30-year-old star quickly replying to say: ''@taylorswift13 You're as sweet as pie! Let's write a song together about the subject we know best... for my new record. It'll be brilliant (sic)''