Pop star Katy Perry has unleashed her inner roar at the Australian media in a scathing social media post, warning them against publishing images of her at a famous Sydney nudist beach.

The singer was allegedly confronted by three photographers, one of whom Perry claims stripped off to snap photos of her at gay-friendly Obelisk Beach in Mosman.

The singer singled out infamous paparazzo Jamie Fawcett in her post yesterday, warning him she has images of his “tiny penis” and “large gut” in her possession.

Perry made it clear that images taken of her at the beach were “against my will,” after she alleged the snappers told her she could make a “deal” with them.

Perry alleged the photographers promised to leave her alone in exchange for shots of her in her bathing suit.

Fawcett is notorious for run-ins with celebrities, most notably when he was accused of bugging Nicole Kidman’s Sydney home in January 2005.

He denied the allegation and while a jury deemed he had been defamed, Supreme Court Justice Carolyn Simpson ruled in favor of Kidman and ordered Fawcett pay a $1 million compensation bill, according to the Daily Telegraph at the time.

Spice Girl Mel B took Fawcett to court last year on claims of harassment when she was in the country, but a request for an apprehended violence order was dismissed in court.

Perry alleges Fawcett took pictures of her “while being naked” but the photos have not yet surfaced in any publications.

Fawcett was not among the photos of the men, labelled “stalkers” by Perry on Twitter yesterday.

In a series of tweets shared with her 60 million followers yesterday, Perry detailed the encounter, saying she had “plead” with the men to give her some space.

She then turned the tables on the paparrazo, posting pictures of the photographers she alleges were responsible for “stalking” her.

The pop star is in Australia as part of her Prismatic World Tour, playing 23 dates in arenas across the country until the middle of December.

Perry is due to appear as a special guest at the ARIA Awards in Sydney on Wednesday.