Eminem At The 2014 MTV Movie Awards
Eminem performs on stage at the 2014 MTV Movie Awards in Los Angeles, California April 13, 2014. Reuters/Lucy Nicholson

Eminem’s publishers will be facing the National Party in Wellington’s High Court in May 2017 over its unauthorized use of Eminem’s “Lose Yourself” hit on its 2014 rowing-themed campaign video.

Various media outlet in New Zealand reported that the hearing of the copyright infringement case is expected to last three weeks. But it is not immediately clear if Marshall Mathers will be summoned to appear in court.

Eminem’s US-based publisher, Eight Mile Style, would make an appearance as the suing party. The firm that holds the copyright for the rapper's original music, Eight Mile Style argued that the National Party’s use of a piece of Eminem-eske music breaches the 2002 hit song’s copyright.

But the National Party previously said it has went through the proper licensing process before using the Eminem-eske track from production music supplier Beatbox, which operates in Australia and Singapore.

"They licensed this from a company who ... offered it as Emin-eske, and [the National Party] were looking for something very specifically like Lose Yourself," said Joel Martin, the lawyer representing Eight Mile Style in New Zealand.

For the respondent’s part, National Party secretary Greg Hamilton said the Party maintains its position and will defend it.

United States President Barack Obama and American Olympian Michael Phelps are among the popular personalities reported to have included Eminem’s “Lose Yourself” in their playlists. (Read: Eminem’s ‘Lose Yourself’ preps Obama for DNC speech)

Since its release in 2002, Eminem's "Lose Yourself" has earned 92.5 million views on YouTube.

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