Was it Rudolph? How about White Christmas? Or how about a classic like Oh Holy Night? Actually, it was none of the above. It was instead Jewel In The Night, an original song recorded at the Space Station by Hadfield, according to Tech Crunch.
The video, which was posted to YouTube on Christmas Eve, had been viewed by more than 6,000 people as of Tuesday evening. The video's description reads
Chris Hadfield's first recording from the International Space Station. You can hear the slight buzz of the station's fans in the background.
Hadfield also spent time this Christmas running on a treadmill in space and celebrating Christmas with stockings and a Christmas tree hanging from the ceiling.
On his twitter account, Hadfield commends "The beauty of a weightless Christmas".