Other representatives for White did not immediately respond to EW’s request for comment.

“If it mattered, it would have mattered to them before.”

The suit also says they were collaborating on writing and recording a song together.

Lady Antebellum, Lady A

Credit: Jason Kempin/Getty Images; Courtesy Lady A

Trust is important and I no longer trust them."

We’re disappointed that we won’t be able to work together with Anita for that greater purpose."

It was officially registered July 26, 2011, after no oppositions to the trademark were filed.

The suit says White never applied to trademark or register the name Lady A.

“Plaintiffs simply wish that the parties continue to coexist,” it says.

We hope Anita and the advisers she is now listening to will change their minds about their approach.

We can do so much more together than in this dispute."