Katy Perry's Twitter hacker tries to help her make peace with rumoured rival Taylor Swift

It appeared that the rumoured rift between Katy Perry and Taylor Swift had come to an end on Monday (May 31) after Katy tweeted some kind words directed at the "Shake It Off" singer. "Miss you baby!" read a tweet sent to Taylor's @taylorswift13 handle. But before fans could dream up a Katy/Taylor double headlining world tour, a hacker confirmed that he or she was behind the tweet.

TAP FOR FULL GALLERY Katy and Taylor used to be close friends before reportedly falling out in 2012.

The Romanian-based hacker account managed to crack Twitter's most followed user. Katy became the first user to reach 80 million followers in January, surpassing social media moguls like Justin Bieber.

The singer has yet to comment on the hack, but all unauthorized comments were quickly removed.

The pop stars used to be big supporters of each other's careers.

Katy and Taylor were friendly between 2008 and 2012, during which time they were pictured together at events and tweeted each other encouraging comments and praise. It seems that their friendship hit a rough patch in 2012 after reports surfaced that Katy recruited dancers from Taylor's Red tour to join her on her Prismatic world tour. Then came the release of Taylor's GRAMMY-winning track Bad Blood, which had everyone speculating that the lyrics were about Katy.

In the Sept. 2014 issue of Rolling Stone, Taylor confirmed that the song was about a former friend who wronged her. "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. And I'm surprisingly non-confrontational — you would not believe how much I hate conflict. So now I have to avoid her. It's awkward, and I don't like it," she told the publication.

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