It all seemed normal business for Pharrell Williams as he arrived at Berlin Fashion week to launch his eco-friendly Bionic Yarn range.<br/> <br />No word about his recent lawsuit against fellow rapper will.i.am.<br/> <br />On Monday (July 1) the music producer had asked a U.S. court to rule that he has not violated any trademarks owned by the Black Eyed Peas star.<br/> <br />The lawsuit said that will.i.am, real name William Adams, has repeatedly sent letters to Williams demanding he stop using versions of the phrase "I AM" on his website iamother.com.<br/> <br />However William's company, I Am Other Entertainment, claims it hasn't committed any violations, highlighting the differences in spelling.<br/> <br />William's website hasn't used any periods between the "i" and the "am." Those owned by will.i.am do.<br/> <br />According to Brad Rose, a counsel for Williams, the lawsuit is asking the court to declare the phrase "I Am Other" does not "infringe, dilute or unfairly compete" with will.i.am.<br/> <br />In Berlin, Wil
