When Morgan Evans proposed to Kelsea Ballerini, he admitted that meeting his future bride's mother was an intimidating exercise. He obviously passed the test, but now has found himself facing another mother-in-law challenge — namely, the Christmas Onesie.

In a hilarious photo posted on Instagram on Christmas Eve (Dec. 24), Ballerini showed off her mom's gifts to her and Evans — "Mr." and "Mrs." pajama suits.

"She's outdone herself this year," wryly noted the newly married singer of her mother's selections. Ballerini's onesie sports a paw print, while Evans' has ocean waves. The family dog looks on in admiration (or perhaps is laughing in canine language behind their backs).

The 24-year-old "Legends" singer and 31-year-old Evans got engaged on Christmas Day in 2016. The couple married in a small oceanside ceremony on the beach in Cabo San Lucas, Mexico on Dec. 2. And now, a mere three weeks later, they've settled right in and are sporting matching onesies for the holidays. Can anyone say #couplegoals?

Ballerini hopefully will make good use of her downtime over the holidays, as she'll be busy hitting the road in 2018 on her headlining Unapologetically Tour. That road trek kicks off Feb. 8 in Alabama and runs through April 27, when it wraps with a performance at the Stagecoach Festival in California. Walker Hayes and Bailey Bryan will serve as Ballerini's support acts for the tour, which is slated to make stops in Nashville, New York City and Seattle, among other cities.

Adorable Pictures of Kelsea Ballerini and Morgan Evans