K.J. Biermann

From the day he was born, we knew Kim Zolciak’s firstborn son, KJ Biermann, was quite a looker, and now we know that the little tyke is super smart too!

On the May 21 episode of Don’t Be Tardy, KJ seemed to understand his nanny when she spoke to him in Spanish, which we think is a pretty impressive feat for a little guy who hasn’t even celebrated his second birthday yet....

Get ready to die from cuteness overload, people. Former Real Housewives of Atlanta star Kim Zolciak recently hit up Instagram to share a picture of her older boy, KJ, perched on top of the interview chair for his first Don't Be Tardy confessional. Oh. Em. Gee.

"KJ in the interview chair today with our favorite producer Jen!!! #icant," gushed the proud mama.

Seriously, just the thought of KJ...

Out of all the Real Housewives of Atlanta, Kim Zolciak seems to have undergone the most dramatic transformation. From her start on Season 1 to her early departure from Season 5, one second she was chain smoking and swigging wine, and the next second she was married with two brand new baby boys.

Actually, her engagement to NFL player Kroy Biermann, their wedding, and the birth of KJ happened...

Just when we thought Kim Zolciak's oldest boy, KJ, couldn't get any more adorable, he goes and does something else to make us melt into a chorus of awwws.

The 34-year-old mom of four recently snapped a photo of the toddler staring up at the TV in awe after seeing himself on a preview for Don't Be Tardy. Talk about a "whoa" moment!

Kim shared the pic on Instagram on April 15, writing, "KJ can't......

The Bravo Upfronts are happening this week in New York, and The Real Housewives of Atlanta are northbound for the event. But one Hotlanta housewife is headed to NYC in tears... why is Kim Zolciak having a cry fest?

Because she's a doting mama, that's why! The mother of four took to Twitter to vent her emotions over saying goodbye to her adorable two sons.

So sad leaving my babies 2day heading...