Kim Zolciak, Kroy Biermann have baby boy

A Real Atlanta Housewife and her real Atlanta Falcons football player fiance had a real live baby this week -- on Memorial Day.

Zolciak tweeted the news late Tuesday: "@biermann71 and I are happy to announce the birth of our son today Kroy Jagger Biermann is healthy & beautiful We are so in love!"

The baby joins sisters Brielle, 13, and Ariana, 9, Zolciak's daughters from a previous relationship.

Zolciak, one of the stars of Bravo's successful "Real Housewives of Atlanta," met the Falcons defensive end on the show. Zolciak is also known for her 2009 hit song "Tardy for the Party." "Real Housewives of Atlanta" returns for its fourth season in October.

Bravo describes the series as an "up-close and personal look at six fabulous women from Atlanta's social elite — from Grammy-Award winners to aspiring singers, power brokers to supermodels — as they juggle their burgeoning careers and busy home lives amidst the whirl of the south's hottest city. Atlanta has become one of the hottest entertainment hubs in America, and the Housewives are taking their individual talents to new heights in search of stardom. These driven and ambitious women prove that they're not just 'housewives,' but entrepreneurs, doting mothers and feisty southern women."

Biermann, 25, is from Montana and has played all 16 games of the past three seasons with the Falcons.

Biermann and Zolciak agreed earlier this year to rent a million dollar Roswell home of former NBA star Antonio Davis.