Singer Sinéad O’Connor is being sued by her former manager Fachtna Ó Ceallaigh and his company for alleged breach of contract and defamation.

The action is brought by both Mr Ó Ceallaigh and TAL Management Limited, a company he owns and controls which it is claims provided managerial services to the singer for several years for an agreed monthly fee plus commission and expenses.

In 2011 he claims the company was substituted for him under a new agreement.

While it was not executed it is claimed the parties performed the terms of the new agreement.

In April 2012 he claims that without warning the singer terminated the agreement.

Source: RTE