Kim Z. and her fiancé, Kroy Bierman, welcomed their first child together. "[Kroy] and I are happy to announce the birth of our son today," Zolciak wrote on Twitter Tuesday night.

"Kroy Jagger Biermann is healthy & beautiful," the Real Housewives of Atlanta star added. "We are so in love."

The couple's newborn is named after his father, who is a defensive end for the Atlanta Falcons.

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