O Canada" is the National Anthem of Canada. The song was originally commissioned by Lieutenant Governor of Quebec Théodore Robitaille for the 1880 Saint-Jean-Baptiste Day ceremony. Calixa Lavallée wrote the music as a setting of a French Canadian patriotic poem composed by poet and judge Sir Adolphe-Basile Routhier. The lyrics were originally in French and translated into English in 1906.
Click the video below to hear "O Canada"
We used to sing God Save The Queen when I was in grammar school as well, but they haven't done that for many years now. For those who haven't heard it before, here it is: