Kanye West is suing an insurance firm for $10 million (£7.6 million) after a series of UK tour dates were cancelled.
The rapper's touring company says Lloyds of London are refusing to pay out after illness caused the star to pull out of 21 planned concerts last November.
West spent "hundreds of thousands of dollars" on insurance with Lloyd's to cover the costs of a cancellation but is yet to receive a payment, according to legal documents.
In the document, Very Good Touring said Lloyds had implied it can refuse to pay out by claiming West's marijuana use had caused his medical condition.
West was playing in Sacramento, California, on November 19 when his "strained, confused and erratic" behaviour caused him to stop the show.
He then spent eight days in a psychiatric centre during which it was decided he could not go on with the tour.
It was said West was suffering from "exhaustion" at the time.
He went on to make controversial statements about Jay-Z and Beyonce and pledging his support to Donald Trump, who was then running for US president.
Lawyer Howard King said the insurance company had failed to give "anything approaching a coherent explanation about why they have not paid, or any indication if they will ever pay or even make a coverage decision".
Mr King also took aim at Lloyds accusing the company of "maliciously" sharing confidential information with news outlets about West to intimidate him from taking legal action, and criticised it for running "unending" investigations to avoid making pay-out decisions.
A spokeswoman for Lloyd's of London declined to discuss the Kanye West legal action, saying: "We're not able to comment on matters in litigation."
Very Good Touring is suing for more than $9,861,000 (£7,464,000) in damages and is demanding interest be paid over the alleged breach of contract.