NFL wants more damages from MIA over Super Bowl show
The National Football League (NFL) is now demanding $16.6 million (£9.9m) from MIA in a case surrounding her 2012 Super Bowl half-time show.
The British rapper stuck her middle finger up while performing with Madonna.
The NFL was already seeking $1.5m (£900,000) in damages for the gesture, which they called "offensive".
At the time MIA said she had been made a "scapegoat" by the American football league.
According to the NFL, she breached an agreement to maintain its "reputation for wholesomeness".
The NFL's additional $15.1m (£9m) is based on the estimated value of exposure MIA received for appearing in Madonna's performance and what an advertiser would have paid for that time.
MIA's lawyers said in a statement: "The claim for restitution lacks any basis in law, fact, or logic."
At the time, US broadcaster NBC apologised for the half-time performance, which attracted a record audience for US television.
According to US magazine, The Hollywood Reporter, MIA said: "The continued pursuit of this proceeding is transparently an exercise by NFL intended solely to bully and make an example of Respondents for daring to challenge NFL."
She also responded on Twitter, she said, to "show exactly what the NFL wanted" regarding her original claim.
"This is what they want me to sign, that I've been fighting for two years on top of $16 million," with a picture of the official documentation.
MIA is attempting to counter the NFL's claims of "wholesomeness," bringing up previous half-time performances by Michael Jackson, Prince, and even Madonna that included lewd gestures.
Her lawyers also point to recent NFL scandals involving racial slurs, bullying and head trauma.
As well as the finger, MIA also swore during the performance of Gimme All Your Lovin' with Madonna and Nicki Minaj.
The British rapper tweeted Madonna asking, "ummm ..... can i borrow 16 million?"
Follow @BBCNewsbeat on Twitter