LONDON--Elton John [ tickets ] appeared in a British courtroom on Thursday (11/16) to testify in a $30 million lawsuit that he has filed against his former accountant, Andrew Haydon, according to published reports.

John is reportedly suing Haydon over $30 million in tour expenses that was allegedly billed to John's companies in the mid-‘80s rather than paid by the accounting firm John Reid Enterprises, for which Haydon was the managing director at the time. John's lawyers have held that a 1984 contract with the firm, now operating under the corporate umbrella of Price Waterhouse Coopers, placed the payment liability for the tour expenses on the accounting firm.