Oh no you didn't!
Then, Katy decides to send the hater a selfie to let them know she saw the message. Unfortunately, this edit surfaced online and everyone thinks it's the actual message Katy sent to the fan:
When Katy got wind of it, she was not happy because sending a message like that is just not her style.
Eventually, the fan who made the edit came clean and apologized, which Katy thanked him for doing:
@katyperrylately I NEVER wrote those words, that is an EDITED picture or the person added it after I took it. I would NEVER use the C word.— KATY PERRY (@katyperry) September 1, 2015
And, for what it's worth, this is apparently the ACTUAL text that was sent. Just a simple selfie: