Article continues below advertisementA Messy Legal Battle With Katie Taylor (Née Perry)Source: MEGAAn Australian High Court said the designer's label did not breach trademark laws.Katy Perry has weathered her fair share of controversies throughout her two-decade career.One of the singers most talked-about firestorms was her legal showdown with Sydney-based fashion designer Katie Taylor (née Perry), who applied to register the "Katie Perry" trademark in September 2008 for the sale of her clothes. The filing was submitted a few months after Perry dropped her debut single, "I Kissed a Girl.