stiarway to heaven

Did Led Zep Steal a Song?
Did Led Zep Steal a Song?
Did Led Zep Steal a Song?
This controversy is not new, but the courts are now involved in a lawsuit that claims that the song 'Stairway to Heaven' is a rip-off of a song by the group, Spirit. I've listened to the song in question and I frankly don't think it's all that similar...