Jimmy Page and Robert Plant, Led Zeppelin icons, are credited as co-writers of the legendary 'Stairway to Heaven' and are the main defendants in the plagiarism case, now heading to a jury trial. U.S. District Judge Gary Klausner determined 'Stairway to Heaven' shares enough of a resemblance to 'Taurus,' a song recorded by the band Spirit four years prior, in 1967. After both Zeppelin and Spirit toured together prior to the song's recording, Jimmy Page admitted that the band may have influenced his writing of the song but called plagiarism accusations "ridiculous."

Michael Skidmore, a trustee for late Spirit frontman Randy California, filed the lawsuit and Judge Klausner said a jury could find "substantial" similarity between the first two minutes of both songs. "While it is true that a descending chromatic four-chord progression is a common convention that abounds in the music industry, the similarities here transcend this core structure," the judge said. "What remains is a subjective assessment of the ‘concept and feel’ of two works … a task no more suitable for a judge than for a jury." The trial is set to begin on May 10th. Compare both songs below.