Kandi Burruss' mother Joyce unleashed her fury on the music producer's fiance, Todd Tucker, in her continuing battle against the man she doesn't think is rich enough to be with her daughter.

On Sunday night's The Real Housewives of Atlanta, mama Joyce didn't hold back during a tense dinner with Kandi and Todd.

In the most bizarre moment of the night, after Kandi left the room, Joyce started singing the Diana Ross classic "Ain't No Mountain