Kim Zolciak-Biermann celebrated a major milestone on Don't Be Tardy - her fortieth birthday! Of course Kroy Biermann organized an amazing party with a casino theme (which if you know Kim is very appropriate). It was certainly a memorable affair, between Kim really reconnecting with her brother to Brielle navigating all of her exes. Get a behind-the-scenes look at the festivities with these exclusive photos below!

Get a sneak peek at the next episode of Don't Be Tardy: