The suit - brought by Randy California's estate and members of Spirit - claims the acoustic introduction to 1971's "Stairway" was lifted from their 1968 instrumental, "Taurus."

The two bands shared the bill at several shows in late 1968 and 1969. "I do not recall ever seeing Spirit perform live," stated guitarist Jimmy Page in his deposition for the case. "Again, though, I am absolutely certain I never heard them, or anyone else, perform 'Taurus.'"