Compare these two pictures. Could this possibly be the same little guy?!?!?!?

I'm having a VERY difficult time wrapping my mind around the fact that Jackson's been a fixture in this family for four years now. Four years!

Happy birthday to our big boy! May your next four years see as much growth, as much advance, and as much love as your first 4 have.

Mom and Dad love you to the end of the earth. We hope you'll always love us to the moon and back.