The pop starlet said, "It's a thing that's happening right now"

By People Staff
Updated December 25, 2013 07:10 PM
Credit: Courtesy of Taylor Swift

Like brother, like sister.

Taylor Swift, 24, got into the festive Christmas Eve spirit on Tuesday night by sporting a red, plaid onesie alongside her younger brother Austin.

“Matching Christmas onesies is a thing that’s happening right now,” the “I Knew You Were Trouble” singer wrote as a caption on Instagram to accompany a shot of the siblings.

The duo wasn’t matching entirely though. Brother Swift sported a Santa Claus hat on his head, while his sister, whose perfectly coiffed hair peeked out from underneath, covered her head with long, fuzzy bear ears.

Leading up to the big day, Swift posted an adorable throwback video on Instagram on Monday of her making a phone call during Christmas of 1993.