The origins of Robin Thicke and Parrell Williams' hit track 'Blurred Lines' are still not yet solved and a trial is the only way to prove once and for all if there are elements of the song that were copied from Marvin Gaye's music, a judge has ruled.

Robin Thicke
Thicke's 'Blurred Lines' is heading to a courtroom

In October 2013, Marvin Gaye's children filed a lawsuit, claiming the two artists stole the summer hit from Gaye's 'Got To Give It Up,' as well as committing copyright infringement on Gaye's 'After the Dance' to create Thicke's song, 'Love After War'.

U.S. District Judge John A. Kronstadt decided that this case needs to be concluded in a courtroom after listening to conflicting reports by experts who analysed 'Blurred Lines' and 'Got To Give It Up' to see if there are any striking similarities.

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The judge ruled there is a genuine dispute that several aspects of Thicke and Williams' song such as hooks, bass lines, keyboard chords and vocals, could be copies of the legendary singer's own music.

It is worth noting that Kronstadt only wants the jury to focus on how the songs' compositions look on sheet music, not how they sound to listeners.

"Since the compositions at issue are completely different, we remain confident of prevailing at trial," Thicke and Williams' attorney, Howard King, wrote in an email about the judge's decision, the Associated Press reports.

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Nona Gaye and Frankie Christian Gaye, who filed the lawsuit, have not yet commented on their case going to trial, which has been set for Feb. 10, 2015, in Los Angeles.