Yep, Jermaine Dupri and Ludacris are/were big hits too. Jermaine's big thing was producing Kriss Kross in 1992(He later came back with more stuff as you know). But Kriss Kross was a one-hit wonder. Now, Ludacris came out in the late 90s after the Dungeon Family (Outkast, Goodie Mob, Cool Breeze, WitchDoctor etc) really put Atlanta out there in 1994 - 1996. Ludacris was still in college/university and was working as a locate DJ at the time. Ludacris and I went to the same university. I used to see him walking around on campus between classes.
Edit:
In the Coast 2 Coast Remix Jermaine mentions Freaknik and say he misses it. For those who don't know Freaknik truly was the shit. Basically imagine 150,000 students and other party-goers from various states hitting Atlanta all at the same time. It was CRAZY! You would be in traffic for hours but no one who was there for fun cared. We would get out of the car and walk to the cars that had women in them. Dudes would be on the the major freeways on bicycles and shit. It was crazy. Unfortunately, the Freaknik died because the police got to strict with their enforcement.
Edit Again:
For the people who like Gnarls Barkley. The Outkast song above is pretty much where Cee-Lo began his career.