Rihanna has sued her father and is accusing him of exploiting the use of their last name.
The pop star, whose full name is Robyn Rihanna Fenty, filed a lawsuit in the US federal court in Los Angeles on Tuesday.
She accused her father, Ronald Fenty, and two business partners of fraud and false advertising over his Fenty Entertainment company.
The Barbados-born singer uses the Fenty trademark to sell cosmetics, lingerie and trainers.
She asked the court for an injunction to stop her father using the Fenty name for the talent and production firm.
Rihanna has asked also for an unspecified amount of damages.
The lawsuit said Rihanna had "absolutely no affiliation" with Fenty Entertainment but the company was misappropriating her name and misrepresenting itself as being affiliated with her.
In one instance, Fenty Entertainment accepted a 2017 offer by a third party for Rihanna to perform 15 shows in Latin America for $15 million (£12 million), the lawsuit said.
In another, Fenty Entertainment falsely implied that the singer was involved in a boutique hotels project, it added.
The lawsuit said that despite having repeatedly been told they have no authority to use her name, the Fenty trademark or speak on Rihanna's behalf, Ronald Fenty and his business partners had continued to misrepresent an affiliation with her.
Fenty Entertainment has been approached for comment.
