Immigrant Song” was written during Led Zeppelin’s tour of Iceland, Bath and Germany in the summer of 1970. The opening date of this tour took place in Reykjavík, Iceland, which inspired vocalist Robert Plantto write the song.
The song’s lyrics are written from the perspective of Vikings rowing west from Scandinavia in search of new lands. The lyrics, such as “Fight the horde, sing and cry, Valhalla, I am coming!” make explicit reference to Viking conquests and the Old Norse religion. In a 1970 radio interview, Plant jokingly recalled, “We went to Iceland, and it made you think of Vikings and big ships … and John Bonham’s stomach … and bang, there it was – Immigrant Song
We did come from the land of the ice and snow. We were guests of the Icelandic Government on a cultural mission. We were invited to play a concert in Reykjavik and the day before we arrived all the civil servants went on strike and the gig was going to be cancelled. The university prepared a concert hall for us and it was phenomenal. The response from the kids was remarkable and we had a great time. “Immigrant Song” was about that trip and it was the opening track on the album that was intended to be incredibly different.
All care of: http://en.wikipedia.org/wiki/Immigrant_Song