'Real Housewives of Atlanta' WAR -- Kim Zolciak Beats Kandi Burruss' Ass ... In Court

It's no clothes-tearing cat fight ... but it was still pretty nasty ... and now, former "Real Housewives of Atlanta" star Kim Zolciak has prevailed -- beating the crap out of Kandi Burruss in Kandi's own lawsuit.

As we reported, Burruss -- repped by fellow RHOA star Phaedra Parks -- sued Zolciak over their 2009 song "Tardy for the Party," claiming Kim swindled her out of a huge chunk of the song's profits (... though we can't imagine they amounted to much).

Zolciak responded with her own legal docs, accusing Kandi of using the lawsuit as a publicity stunt to promote her now-canceled show "The Kandi Factory." (Clearly it worked.)

But NOW THE WAR IS OVER ... a judge has officially ruled in Kim's favor (pretty much on a technicality involving federal court jurisdiction and blah blah whatever).

But who cares. Because now no one has to hear the phrase "Tardy for the Party" ever again.

Okay one last time.