At the heart of the case is whether Gaga’s MAYHEM-branded merchandise is likely to cause consumer confusion with Lost’s registered trademarks. This is a classic Section 2(d) likelihood of confusion issue under the Lanham Act. Whether you're launching your first fashion line or expanding a growing ecommerce brand, this case shows why trademark searches, registration strategies, and proactive enforcement matter more than ever.

In March 2025, a high-profile trademark dispute erupted in the U.S. District Court for the Central District of California, pitting famed surf and lifestyle brand Lost International, LLC (“Lost”) against international music icon Stefani Joanne Angelina Germanotta, professionally known as Lady Gaga. At the center of the controversy is the word “Mayhem” — a trademark Lost [...]