Rihanna has sued her former accountants, blaming them for tens of millions of dollars in losses from the singer's tours.
The 24-year-old singe is seeking an unspecified amount of compensatory damages and loss of earnings from New York-based Berdon.
Rihanna, whose real name is Robyn Fenty, has produced a string of worldwide hits including "Umbrella" and "We Found Love."
She said she hired the accountants in 2005 when she was just 16-year-old.
The lawsuit said Rihanna lost millions of dollars during "The Last Girl On Earth" tour after the firm failed to reconcile costs versus revenues while still paying itself millions in fees.