If you are curious, the Absolute Christmas contains everything from Wham's Last Christmas, Abba's Happy New Year and Harry Belefonte.
But some classics are this one here:
Nu är det jul igen! The lyrics are: Now it is Christmas again, Now it is Christmas again, and it will go on until Easter, but that isn't true, that isn't true because in the middle is Lent.
It works better in Swedish
All good Swedish holidays include the drinking of the snaaps. But before there is the drinking of the snaaps there must be singing. At Christmas you sing this one:
The translation is: Hello Santas bang your glasses and let us merry be! Hey Santas bang your glasses and let us merry be! A little while, we will live here, with lots of effort and trouble. Hello Santas bang your glasses and let us merry be!
And if my first paragraph just left you nostalgic for Wham.... there is always this: