The duo and Swift's younger brother Austin proved their Christmas game is strong in a cute Instagram picture of their attempt to build a snowman this week, reported Digital Spy.
"Really proud of ourselves over here," Swift captioned the image.
Swift will have a bit of downtime with her beau Harris this Christmas, given that she's wrapped her globe-trotting '1989' tour.
The singer-songwriter ended the sold-out trek with three nights at the AAMI Park in Melbourne, Australia earlier in December.