According to science, the BEST Christmas song says the word Christmas 21 times, is a snappy up-tempo bangers, and is about 3 minutes long.
The musicologists says that just hearing the word "Christmas" triggers thoughts of happiness in most people.
They also found that themes of joy, snow, peace, love and Santa all contributed ot the perfect Christmas song.
And there should be sleigh bells.
Meredith and Jeremy attempt to create the perfect Christmas song...but sadly, couldn't hit all the themes before it was shut down.
Producer: Jamie Ellard
