The WDR Symphony Orchestra staged a flash mob fit for sci-fi geeks at Wallraf Square in Cologne, Germany.
The surprise show begins with a lone trumpeter and conductor playing the well-known first bars of the piece while standing in the center of the busy shopping district. Before long, a group of wind and brass instruments joins him from the upper floor of a building. The rest of the orchestra seems to materialize in the seats of a cafe.
The video has been seen by over 600,000 people since it was published on Oct. 10. The WDR is the constituent orchestra of Westdeutscher Rundfunk, the West German Broadcasting network.