CHESTERFIELD, Mo. (KSDK) – Visitors to the Chesterfield Mall saw something they probably didn't expect on Saturday as the St. Louis Civic Center Orchestra took part in a 20-minute spontaneous "flash mob" performance in the food court.

A music stand with a conducting baton and the sign "conduct me" signaled to shoppers that it was their chance to 'conduct' the group. The orchestra responded accordingly.

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