Katy Hudson, better known as Katy Perry, is a well-known singer-songwriter. On top of owning her own perfume line, she now also has her own clothing line.
In 2008, Australian fashion designer Katie Taylor had the name KATY PERRIE registered as a trademark for clothing in Australia. A problem arises when the pop star sells clothing under the KATY PERRY brand during her 2014 and 2018 tours. the Australian fashion designer argues that this constitutes infringement.
The final verdict arrived this spring, it was deemed trademark infringement indeed. Even if you are famous and are known by a special name, this is not a license to merchandise under that name. Avoid problems and just check this out with a trademark search, so you know in advance where the risks lie.