NEW YORK (AP) — To many Australians, Saturday is more than just Dec. 21. It's “Gravy Day,†all because of a lyric in one of the most unlikely Christmas songs ever written.

“How to Make Gravy,†written by has become a holiday classic in Australia over the past few decades. It was cited this week by the nation's prime minister, Anthony Albanese, as he announced a decision to and is the subject of a new movie that creates a story behind the song.

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