 The tune is also known for its use in Carl Stalling's music scores for various Warner Bros. Cartoons shorts.Canada's unofficial national anthem, "The Maple Leaf Forever", by Alexander Muir, is also heard, as well as "O Canada", the de facto Canadian anthem since 1939, and official anthem since 1980.The title song was the B side of a 1942 recording (Decca 4174) by Dick Powell, with "Over There" as the A side.