10/24/2014 07:39 EDT | Updated 12/24/2014 05:59 EST

National Anthem before Redblacks game in Ottawa

On Friday night in Ottawa, Prime Minister Stephen Harper joined TD Place Stadium in the singing of "O Canada" prior to the CFL game between the RedBlacks and the Montreal Alouettes. 

Everyone in attendance was asked to sing as one voice in defiance of terrorism and in honour of Warrant Officer Patrice Vincent and Cpl. Nathan Cirillo who died tragically in the line of duty on Wednesday.