Led Zeppelin Sued - What Took So Long? Tweet Posted May 20th, 2014 @ 10:54am Lawsuit over 'Stairway To Heaven' intro being too similar to the 1968 Spirit song "Taurus." Okay.. I hear the similarity, but it's not exact, so, don't know if they've gotta leg to stand on. Part in question is about :40 into the song..