Australian fashion designer Katie Perry started her high-end clothing line two years ago – before Katy Perry broke big with “I Kissed a Girl” off her debut album One of the Boys – but she didn’t trademark the name of her label then, which may prove to be a problem.

As the Battle of “Viva la Vida” hits the legal system, Coldplay have once again denied copycatting the riff from Joe Satriani’s “If I Could Fly” for the title track off the band’s latest album. In papers filed yesterday in a Los Angeles federal court, according to Billboard, Coldplay’s lawyers argued that the similarities between “Viva la Vida” and “If I Could Fly” weren’t enough to warrant a lawsuit. The band’s legal team also stated that Satriani’s instrumental “lacked originality,” and thus shouldn’t be covered by copyright law, therefore preventing “Viva La Vida” from violating any copyrights.