ATLANTA — Cynthia Bailey, arguably the most glamorous of the “Real Housewives of Atlanta,” shivered in a sleeveless red shift, microphone in hand.

It was oddly cold, but the intrepid model carried on. She had a job to do: interviewing the talent that swaggered down the red carpet for the Soul Train Awards.

All along the police barriers that closed down Peachtree Street, fans screamed and elbowed one another for a better view. Those lucky enough to have tickets slipped into the Fox Theater, all glittery and prepared to party.

This was celebrity black Atlanta at its best.

A few years ago, the city probably would not have been able to pull off such a show. But fueled by a generous entertainment tax credit, the migration of affluent African-Americans from the North and the surprising fact that even celebrities appreciate the lower cost of living here, this capital of the Deep South is emerging as an epicenter of the black glitterati.