The account was quickly taken back and the hacker's messages were erased without any mention of what happened.
The 'Roar' singer Katy Perry's Twitter account has been hacked and the person behind it is sending out foul and racist language on her page along with the hashtag "#HackersGonnaHack."
Katy’s Twitter account which was hacked on Monday night is worth 89 million followers and listed as one of the largest Twitter accounts on the social media platform.
However, the account was quickly taken back and the hacker messages were erased without any mention of what happened.
See a screen grabs of tweets posted by the hacker below.
Twitter is currently investigating to capture the person or people behind the hack.