OK! magazine have issued a formal apology after reporting that Katy Perry was pregnant.

The US publication said in their March 2 issue that the singer was expecting a baby with John Mayer.

It also said that the duo were planning on getting married.

However, OK! have now published an apology for the made-up story.

They said: "In the March 2, 2015 print edition of OK! Magazine, we wrongly stated that Katy Perry was pregnant, and that she was planning a wedding.

"We acknowledge that Ms. Perry is not pregnant, and she is not planning a wedding. We regret the mistake and sincerely apologise to Ms. Perry for publishing the error. We also apologise for including paparazzi photos of Ms. Perry that had been taken with a long lens while she was having a private function at her home."

Perry said on Twitter on Monday (March 30): "REMEMBER these magazines are fiction designed for entertainment. NO ONE speaks for me."

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