Court documents say: "Although Mr Fenty is Rihanna's father, he does not have, and never has had, authority to act on Rihanna's behalf."
It claims they have "egregiously and fraudulently misrepresented to third parties and the public that their company, Fenty Entertainment, LLC, is affiliated with Rihanna, and has the authority to act on her behalf."
Rihanna's lawyers claim her father tried to book shows, including a $15 million tour in Latin America, and two shows in Las Vegas, that had nothing to do with her.
Lawyers say the pair ignored cease and desist demands. She is seeking an injunction and unspecified damages.
Rihanna has a sketchy relationship with her father. In 2018, he tried to trademark the name Fenty for a group of hotels, but was denied.