In a High Court ruling delivered on 11th March, singer Katy Perry was unsuccessful in a long-running trade mark dispute against Australian fashion designer Katie Perry.  

 A brand name is one of the most valuable assets to a business. It represents reputation and consumer recognition built over time. However, when brand names overlap or are used by more than one party, disputes can arise and sometimes escalate into complex legal battles.  

 In 2007, an Australian designer began trading under the name ‘Katie Perry’ and applied to register the name as a trade mark for her clothing brand shortly afterwards. Meanwhile, in the US, pop singer, Katheryn Elizabeth Hudson, adopted the stage name ‘Katy Perry’ in 2001 and was developing a growing international reputation.  

The dispute began in 2009, when the singer toured Australia and sold merchandise branded with the name ‘Katy Perry’.  

Years later, the designer Katie Perry, commenced legal proceedings in the Federal Court, alleging that the singer’s merchandise, infringed her registered trade mark.  

In 2019, the Federal Court held in the designer’s favour of the trademark infringement. However, in 2024, on appeal, the decision was overturned with the court finding that the singer had established a reputation in Australia before the clothing brand was launched. 

On 11th March, in a majority decision in the High Court, it was ruled in favour of the Australian designer, Katie Perry. 

The court concluded that the designer’s registered trade mark complied with Australian trade mark law and that its use was unlikely to deceive consumers or damage the singer’s reputation. Costs were awarded in favour of the designer.  

This case illustrates the importance of protecting brand names through trade mark registration.  

What is a trade mark and why is it important? 

A trade mark protects a business’s unique brand identity and distinguishes its products or services from those of competitors. In Australia, trade marks are governed by the Trade Marks Act 1995 and administered by IP Australia. Trade marks can protect many aspects of a brand such as business or product names, logos and visual brandings or packaging elements.  

Registering a trade mark provides several important advantages for businesses. It grants the owner exclusive rights to use the mark in Australia for specified goods or services and offers stronger legal protection against competitors using identical or confusingly similar names.  

The Katy Perry case demonstrates how complex trade mark conflicts can become when brand rights overlap. It is important for businesses to protect their brand early through trade mark registration, ensure brand names do not conflict with existing trade marks and to seek legal advice if another business adopts a similar brand.  

If you are launching a new business, expanding your brand or unsure whether your trade mark is adequately protected, reach out to Ersel (ersel@morganenglish.com.au) and the IP + Tech + Compliance Team at M+E today.

Related News

  • Mar 6, 2026

    News

    Mandatory Climate and Sustainability Reporting in Australia

  • Feb 4, 2026

    News

    Strengthened Compliance Obligations Hit Water Intermediaries as ACCC Code Takes Effect