*Bonus Episode* Katy Perry Trademark Battle: Timing Matters - Ep 15

The Katy Perry Trade Mark Case: What the High Court Actually Decided Episode: Taylor v Killer Queen LLC [2026] HCA 5 Episode Overview In this episode of Elise Explains IP, we unpack the High Court of Australia’s long-awaited decision in Taylor v Killer Queen LLC [2026] HCA 5 — widely known as the Katy Perry trade mark case. The dispute involved an Australian fashion designer who registered the trade mark “Katie Perry” for clothing, and the global pop star Katy Perry, whose companies sold merchandise under the same name. After years of litigation and conflicting outcomes in the Federal Court and the Full Federal Court, the High Court has now clarified how trade mark reputation and priority dates interact under Australian law. The key takeaway: trade mark rights are assessed based on the position at the priority date — not with hindsight after someone becomes famous. This decision reinforces the importance of early trade mark filings, evidence of reputation, and careful brand strategy. What You’ll Learn In this episode we discuss: The background to the Katy Perry trade mark dispute Why the Australian designer registered “Katie Perry” as a clothing trade mark How Katy Perry’s companies challenged the validity of that trade mark Why the Full Federal Court cancelled the registration How the High Court reversed that decision Why the 2008 priority date became the central issue in the case What businesses should learn about trade mark timing and reputation Key Legal Issues Explained 1. Priority Dates in Trade Mark Law The High Court emphasised that the validity of a trade mark must be assessed at the time the application is filed. In this case, that meant asking whether Katy Perry had sufficient reputation in Australia in September 2008 to make the “Katie Perry” clothing mark deceptive or confusing. The Court held that the respondents did not prove that level of reputation at that time. 2. Reputation as a Ground for Cancelling a Trade Mark Under the Trade Marks Act 1995 (Cth), a trade mark can be cancelled if its use would be likely to deceive or cause confusion because of an earlier reputation. However, reputation must be proven with clear evidence at the relevant date. Later fame cannot be used to retrospectively invalidate a trade mark. 3. Why the High Court Allowed the Appeal The High Court found that the Full Federal Court had incorrectly concluded that the trade mark should be cancelled. Instead, the evidence did not establish that the singer’s reputation in Australia at the relevant time was strong enough to invalidate the registration. As a result, the High Court allowed Taylor’s appeal and restored the validity of the “Katie Perry” trade mark. Practical Takeaways for Businesses Although this case involved a global celebrity, the lessons apply to any business building a brand. 1. File trade marks early The earlier you file, the earlier your priority date is locked in — and that can be critical in disputes. 2. Reputation must be proven If you want to challenge a trade mark based on reputation, you need clear evidence of that reputation at the relevant time. 3. Courts won’t apply hindsight Later success or fame doesn’t change the legal position that existed when a trade mark was filed. 4. Brand strategy is risk management Choosing a name isn’t just a creative decision — it’s also a legal and strategic one. Case Details Case: Taylor v Killer Queen LLC Citation: [2026] HCA 5 Court: High Court of Australia Decision Date: 11 March 2026 Key legislation discussed: Trade Marks Act 1995 (Cth) Section 60 – Reputation as a ground for opposing registration Section 88 – Rectification of the trade mark register Links and Resources High Court decision: https://www.austlii.edu.au/cgi-bin/viewdoc/au/cases/cth/HCA/2026/5.html High Court judgment summary: www.elisesteegstra.com  About Elise Explains IP Elise Explains IP breaks down intellectual property law into clear, practical insights for: business owners founders and entrepreneurs financial advisors and professional advisers brand owners and creators The focus is on helping businesses understand risk, protect their brands, and build valuable intellectual property assets. Subscribe Follow Elise Explains IP on your favourite podcast platform and share the episode with someone building a brand or launching a business.