Snoopy's Christmas by the Royal Guardsmen is a song that most people will recognise.
It's a song that New Zealanders know and love and have done since 1967 when it first topped our music charts.
But it's only here in Aotearoa that the song has continued to be so popular.
The track featured in charts overseas when it was first released, but it never returned.
So why is it still such a big hit here?
Morning Report's producer Emma Ricketts asks the question that has baffled many for decades.