A woman accused Nelly of sexually assaulting her on his tour bus back in October. Nelly was arrested and later released. He denied the allegations.
RELATED: Rapper Nelly arrested on suspicion of rape
The King County Prosecuting Attorney's Office previously told People Magazine the decision was made to drop the case after the woman told investigators she did not want to testify in court or help with the investigation.
Nelly's attorney says the rapper plans to sue because he has suffered quote "damage to his reputation".
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