Jenelle Evans' Son Just Celebrated A Very Special Milestone

Donning an adorable cap and gown, four-year-old Jace graduated pre-school!

Cue the "Pomp and Circumstance," because we have a newly minted graduate to applaud: Jenelle Evans' son Jace!

The "Teen Mom 2" cast member's four-year-old celebrated his pre-school completion in a ceremony on Friday, and naturally, his proud mom documented the memorable milestone with a handful of photographs on Facebook. We can't help but marvel at Jace's growth -- it seems like only yesterday he was a newborn, and now he's collecting a diploma. We are officially verklempt.

Jenelle Evans' Facebook

Jace couldn't look any happier -- or cuter -- in his bright blue cap and gown. The man of the hour posed with his grinning mama (who is due to give birth to another boy at the end of this month) and beaming grandma Barbara. Jenelle also captured a candid moment of her boyfriend Nathan Griffith sharing a bear hug with Jace. Although we can't see the youngster's expression, Nathan's face sure says it all: LOVE.

Jenelle Evans' Facebook

"Time for the big kid school now!" Jenelle wrote along with the heartwarming snapshots. And we're certain Jace will take his new class by storm!

Jenelle Evans' Facebook

Before Kindergarten in the fall, Jace will be busy with summer vacation, which no doubt will include beach trips and visits to the pool. And then there's also that new role he'll be playing: big brother to Baby Kaiser.

Be sure to offer him congrats in the comments!