Rapper Will.i.Am has filed a copyright lawsuit against singer Pharrell Williams over the latter's new creative brand "I Am OTHER."

Will claims he owns the copyright to the phrase "I AM" and that Pharrell's logo is "confusingly similar," according to the court documents obtained by Rolling Stone.

In the court docs, Will.i.am argues that Pharrell would be using his "i am OTHER" brand on clothing and other items in a manner similar to the goods that bear his own "I AM" logo. "The registration of the mark  is likely to dilute the I AM mark and the WILL.I.AM.

Pharrell's lawyers have responded to Will.i.am's notice of opposition, denying all such claims saying:

“I am disappointed that Will, a fellow artist, would file a case against me,” Pharrell says in a statement to RS. “I am someone who likes to talk things out and, in fact, I attempted to do just that on many occasions. I am surprised in how this is being handled and I am confident that Will’s trademark claims will ultimately be found to be as meritless and ridiculous as I do.”

Representatives for the "Scream & Shout" hit-maker have not yet responded.