He has just settled his bitter divorce with the 'Spice Girls' singer but her mother is determined to keep battling through the courts.
Andrea Brown, 60, is constantly making statements about Belafonte via social media and he's furious that she is defaming his name.
And now Belafonte is threatening to take legal action if she does not stop.
According to sources part of their divorce settlement means that her side stop making allegations against him.
However, Mel's B mother does not want to back down, especially since she believes Belafonte was abusive towards her granddaughter Phoenix too.
In a recent post she wrote: "My daughter is no quitter. The abuse she and Phoenix went through will not be settled out of court...all BS!!
"Not true. All lies. This abuse will no way be settled out of court. Melanie and Phoenix will get justice in court!!"
To help her cope with the divorce Mel B relied heavily on her mother and it looks like she is still determined to fight her former son-in-law no matter what.
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