Jason Aldean's beyond-adorable new son, Memphis, has been well documented in photos by his mom Brittany — much to the delight of fans, who can't resist the baby's uncanny resemblance to his dad. Brittany Aldean posted yet another shot early Tuesday (Jan. 2) to commemorate the little guy's one-month anniversary.

Memphis was born Dec. 1, and in four weeks, he's really grown! In the one-month photo, his eyes are wide open, and he's gone from that indistinct newborn expression to one showing the first glimmers of his personality. (One thing hasn't changed, though. He still looks just like his father.)

"That went so quickly," mused Mom. Yep, that's the way it goes! Don't blink or you'll miss a moment.

Brittany has been nothing short of a champ about keeping fans abreast of their son's progress since his birth, posting funny shots of the couple's trips to Target, cute moments sleeping with Dad and others. And although he's photographed above in a perfectly respectable baby-friendly sleeper, the already super-cool Memphis has been documented wearing Georgia Bulldogs gear — his dad's favorite team.

Memphis Aldean Williams was born Dec. 1 at 1:29PM CT, weighing 9 lbs., 5 oz. In addition to Memphis, Aldean has daughters Keeley and Kendyl from a previous marriage.

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