Prompting subway goers in Copenhagen to actually take their headphones out (gasp), the Copenhagen Philharmonic Orchestra performed Edvard Grieg's 'Peer Gynt' in the middle of a subway en-route. In one of the "classiest" flashmob attacks ever, the Orchestra made the day of some of the astonished on-lookers.

As a promotional effort for the 2012-13 season for the Orchestra, Radio Klassisk, a radio station that features classical tunes, and the Copenhagen Philharmonic Orchestra teamed up to create some spectacular music. More than just a dance routine, the stunt featured highly accomplished musicians cramming themselves and their instruments into the crowded subway. The high-definition performance of their accomplishment shows the cheery morning subway-goers as they react to the beautiful music accompanying them on their morning commute.