Eminem Challenges Australian Beachwear Brand Swim Shady Over Trademark Conflict

US rapper Eminem, born Marshall B Mathers III, has launched a legal challenge against Australian beachwear company Swim Shady, asserting that the company’s name is confusingly similar to his trademarked rap pseudonym Slim Shady.

In September 2023, Eminem filed a petition with the United States Patent and Trademark Office (USPTO) seeking cancellation of a trademark granted to Swim Shady for the term “Swim Shady.” Under US law, Swim Shady is required to respond to this petition by the following week.

Eminem’s legal team contends that the Sydney-based brand has created a "false association" with the rapper’s well-known identity. The 53-year-old artist’s lawyers emphasize that the Slim Shady name has become "distinctive and famous," exclusively linked to Eminem’s rap career since he trademarked it in the US in 1999, coinciding with the release of his album Slim Shady.

Swim Shady, which officially launched in 2024 after initially operating under the name Slim Shade, registered its business name in Australia in September 2023, according to the Australian business regulator. Earlier this year, the company successfully obtained a US trademark for “Swim Shady,” prompting Eminem’s subsequent petition to cancel it.

In a statement to the BBC, Swim Shady described itself as a grassroots Australian company focused on producing stylish and effective sun protection products tailored to the harsh Australian sun. The company declined to comment further due to the ongoing legal proceedings but affirmed its commitment to defending its valuable intellectual property.

Court documents reveal that while Eminem secured the Slim Shady trademark in the US in 1999, he only filed for trademark protection of the name in Australia in January 2025.

Eminem rose to international fame in 2000 with the release of his hit single "The Real Slim Shady," which earned him a Grammy Award for Best Rap Solo Performance. His legal representatives argue that the Slim Shady name is widely recognized and exclusively associated with his music career.

Swim Shady is represented by Sydney-based intellectual property law firm Meyer West IP.

This trademark dispute follows a notable precedent in Australia, where an earlier ruling against US pop star Katy Perry was overturned. In that case, Australian designer Katie Perry, who sells clothing under her birth name, had accused the singer of trademark infringement related to merchandise sold during Perry’s 2014 Australian tour. The legal battle was widely characterized as a David and Goliath confrontation.

The Eminem v. Swim Shady case highlights ongoing challenges in trademark law where established entertainment brands confront emerging companies with similar names, particularly across international jurisdictions. The outcome may have implications for how trademark rights are enforced between the US and Australia, especially in the fashion and entertainment sectors.