Led Zeppelin are being sued by the estate of guitarist Randy California who claim Led Zeppelin lifted a portion of their song “Taurus” as the introduction and foundation of “Stairway To Heaven”. Best known for their 1969 hit “I Got A Line On You”, Spirit actually played shows with Led Zeppelin in 1968, and claim that is how Jimmy Page became familiar with “Taurus”. You can hear both songs here and draw your own conclusions. We’ll keep you updated once the trial, which will feature in-court appearances from Page and Robert Plant, gets started on Tuesday. For more background on Spirit and their music, there’s this article from ROLLING STONE.