I know I don't have the words to 'O Canada' memorized. Based on the logo on the jerseys of the players and the maple leaf on the boards, I'm guessing it was a hockey game held in Canada and a US team was the opponent. Probably a local Canadian gal who was selected to sing it.

Now, if I ever had to sing the Canadian national anthem on invitation, I would have the words memorized - but seeing as I don't have a powerful voice, I'll not have to worry about that situation ever!

-Scott