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Katy Perry’s Twitter, Largest in the World, Gets Hacked

Katy Perry's 89 million Twitter followers likely woke up to a shock this morning following a series of profanity-filled Tweets posted to the social media site after a hacker took control of the singer's account.

The "Firework" performer, who has the biggest following on Twitter, has since deleted the tweets, which even included a message saying that she misses Taylor Swift. Perry and Swift have had a rocky relationship. Swift's song "Bad Blood" is said to be about their feud.

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"We do not comment on individual accounts for privacy and security reasons," a Twitter spokesperson said in a statement.

Katy Perry's representatives were not immediately available for comment when contacted by CNBC.

It's not clear who was behind the attack. A Twitter user with the handle @sw4ylol has been widely-linked with the hack across a number of publications. CNBC could not confirm if this user, who has not posted their real name, is responsible. The user posted a tweet asking, "Who TF is Katy Perry". This was followed up by another tweet containing a link to a track on music streaming site SoundCloud that the hacker claimed to be Perry's new song called "Witness 1.3."

This tweet was later removed. But then another tweet was sent showing an email from SoundCloud saying that the track had been removed because of a copyright claim against it from Universal Music Group.

Perry is the latest in a string of stars to have their social media accounts hijacked, including Swift and Justin Bieber.