Australian Designer Wins Landmark High Court Trademark Battle Against Pop Star Katy Perry

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ByCharlie McMillan

March 12, 2026

Australia’s High Court has ruled in favour of Sydney fashion designer Katie Perry in a long-running trademark dispute involving international pop star Katy Perry.

The legal battle centred on the use of the names “Katie Perry” and “Katy Perry” on clothing and merchandise sold in Australia.

The conflict began more than a decade ago when the singer was preparing for a tour in Australia and began selling branded merchandise under her stage name. The designer argued that those products infringed on her existing clothing trademark.

Katie Perry had registered her name as a trademark for clothing after launching her fashion label in 2007. She maintained that her brand was established before the singer began selling merchandise in the country.

The dispute eventually reached court in 2019 when the designer initiated legal action alleging trademark infringement related to clothing, footwear and headwear sold under the singer’s brand.

The case initially resulted in a win for the designer, but that ruling was later overturned on appeal. The appellate court found the singer had already established a reputation in Australia before the clothing brand gained traction and suggested the designer’s trademark could potentially be cancelled.

The matter ultimately progressed to the High Court, which was asked to determine whether the designer’s trademark breached Australian trademark law or created a likelihood of confusion with the singer’s global brand.

In a majority decision, the High Court concluded that the designer’s trademark was valid and that its use was unlikely to deceive consumers or damage the reputation associated with the singer’s name.

The court examined the timeline of both parties’ use of the name. The singer, whose birth name is Kathryn Elizabeth Hudson, adopted the stage name Katy Perry in the early 2000s as her music career began to grow.

Meanwhile, the designer was born with the name Katie Perry and later used several variations of her name throughout her life, including Katie Taylor. When she applied to register her trademark, she said she was unaware of the singer.

During the proceedings it was revealed that the designer only became aware of the musician after hearing one of her songs on the radio, by which time the trademark application process had already begun.

The court also reviewed evidence indicating that representatives for the singer became aware of the clothing trademark as early as 2009. Despite that knowledge, merchandise using the singer’s stage name continued to be sold during tours in Australia.

In its judgment, the High Court described the designer’s fashion label as a small, independently funded business that had traded under the name for many years.

The court determined that the existence of the designer’s brand did not create a level of confusion among consumers significant enough to breach trademark laws.

Costs of the case were awarded in favour of the designer, bringing the lengthy legal dispute to an end.


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