Fans sing ‘O Canada’ in Ottawa, Toronto, Montreal simultaneously in tribute (Video)

The Ottawa Senators returned to the ice for the first time since the attack on the city on Wednesday, and took part in a memorable tribute to those affected by the tragedy -- a mutli-city ceremony that also celebrated the solidarity of Canadians.

Before their game against the New Jersey Devils on Saturday night, the Senators held a center ice ceremony to remember Cpl. Nathan Cirillo and Warrant Officer Patrice Vincent, including a moment of silence that featured images of the National War Memorial where the shooting began. 

But the Senators weren’t the only Canadian team in action on Saturday night: The Toronto Maple Leafs were hosting the Boston Bruins, while the Montreal Canadiens hosted the New York Rangers.

The teams had discussed doing a coordinated tribute during the week, and on Saturday night fans at the Canadian Tire Centre, Bell Centre and Air Canada Centre synced up for a stirring rendition of “O Canada.”

As Ottawa owner Eugene Melnyk said on Friday: what doesn’t break us, makes us stronger. Today our country stands more united than ever and so does the entire NHL family. We are very pleased to join forces with the Montreal Canadiens and the Toronto Maple Leafs in coordinating a unique and special tribute prior our game on Saturday in honour and recognition of these two brave soldiers, their families and all members of our Canadian military.”