The first few notes of Seven Nation Army by The White Stripes are some of the most iconic sounds in rock music. It’s only a few notes, but it stands out from the rest. During Hamburg’s Harbour-Birthday celebration, the MSC Magnifica cruise ship ‘brought the house down’ by playing the opening of Seven Nation Army on their great horn system. The crowd loved it, and now, the Internet is enjoying it too as this video has gone viral with over 300,000 hits!