After enduring heart problems in 2006, resulting in the cancelation of a concert in Las Vegas, Toni Braxton was stuck with the bill, despite having coverage for exactly this time of problem.

According to TMZ, the singer says her insurance company screwed her, and now she wants them to pay up.

Braxton filed a lawsuit against Lloyd's of London recently, claiming she bought "non-appearance" and "cancellation" insurance, which protects entertainers in case their concerts have to be cancelled.

She claims Lloyd's refuses to pay for the losses at her Flamingo Hotel concert that never happened, on grounds it was an undisclosed, pre-existing condition.

Braxton argues otherwise.

She is now suing for undisclosed damages.