Answer:
False
Step-by-step explanation:
Rihanna is the plaintiff and Britney is the defendant.
In common law, the person or entity that files a lawsuit is the plaintiff. The person or entity that must defend itself from the lawsuit is called the defendant.
In his case, Britney breached a contract she had with Rihanna, therefore, Rihanna sued Britney to recover her money (and possibly other damages). The plaintiff files a complaint and that starts the lawsuit.