Can a global superstar lose the right to use her own name?
In a landmark High Court of Australia decision in March 2026, that’s exactly what happened.
In Taylor v Killer Queen LLC [2026] HCA 5, Australian fashion designer Katie Perry successfully defended her registered trade mark against international pop star Katy Perry—in a dispute that has reshaped how trade mark law applies to personal names, reputation, and brand expansion in Australia.
Quick Summary: Who Won the Katy Perry Trade Mark Case?
- ✅ Winner: Katie Perry (Australian fashion designer)
- ❌ Loser: Katy Perry (international pop star)
- ⚖️ Court: High Court of Australia (3:2 majority)
- 📅 List Item
The High Court confirmed that earlier registered trade mark rights can outweigh global fame, particularly where industries differ.
Background: Why Did Katy Perry Lose the Trade Mark Case?
The dispute arose between two parties using nearly identical names:
Katie Perry (Designer)
- Trading under “Katie Perry” since 2007
- Registered business name and domain
- Applied for a clothing trade mark (Class 25) in 2008
Katy Perry (Pop Star)
- Performing under “Katy Perry” since 2002
- Global fame across music, tours, and merchandise
- Attempted to register her name in Australia in 2009 (including clothing), but withdrew after objections
The conflict escalated when Katy Perry merchandise was sold in Australia, leading to infringement proceedings in 2019.
The Court Decisions Explained
Federal Court (2023): Designer Wins
The Court found that:
- Selling “Katy Perry” clothing in Australia infringed the registered “Katie Perry” trade mark
- The “own name” defence did not apply
Full Federal Court (2024): Pop Star Wins
On appeal, the Court held:
- Katy Perry had an existing international reputation
- That reputation extended to Australia
- The designer’s trade mark should not have been registered
High Court (2026): Designer Wins Again
The High Court overturned the appeal decision and ruled:
- The “Katie Perry” trade mark remains valid
- Reputation in music does not automatically extend to clothing
- There was no sufficient likelihood of consumer confusion
Key Trade Mark Law Takeaways from the Katy Perry Case
1. Trade Mark Registration Still Matters Most
This case reinforces a core principle of Australian trade mark law:
👉 First in time, first in right—if properly registered.
Even global fame may not override a valid earlier registration.
2. Reputation Has Limits in Trade Mark Law
While reputation can defeat a trade mark, it must:
- Be clearly established in Australia, and
- Relate to the same or closely related goods/services
In this case, music fame does not equate to automatic clothing rights.
3. Using Your Own Name Is Not a Defence
Many assume you can freely use your own name in business. This case shows:
- Personal names can infringe registered trade marks
- The “own name” defence is narrow and limited
- Commercial use must still comply with trade mark law
4. Brand Expansion Creates Legal Risk
The dispute only arose when Katy Perry expanded into fashion merchandise.
This highlights a critical issue for growing businesses:
- Expanding into new categories (e.g. clothing, cosmetics, merch)
- Increases the risk of overlapping with existing trade marks
What This Case Means for Australian Businesses
Whether you’re a startup, e-commerce brand, or established business, this case is a clear warning:
✔️ Register your trade mark early
✔️ Conduct proper clearance searches
✔️ Reassess risk before expanding your brand
✔️ Don’t rely on reputation alone
How Macfarlane Law Can Help
At Macfarlane Law, we specialise in intellectual property disputes and trade mark protection across Australia.
We assist clients with:
- Trade mark registration and strategy
- Opposing conflicting trade mark applications
- Trade mark infringement claims and defence
- Copyright advice
- Complex IP litigation and dispute resolution
Need Advice on Trade Marks?
If you’re unsure whether your brand is protected—or at risk—early advice can save significant cost and disruption later.
📩 Contact Macfarlane Law today to protect your brand and enforce your rights.
