Rihanna is being sued by her former Irish bodyguard.

The Rude Boy singer is being sued for defamation by her former head of security, after allegedly sending an “untrue” and damaging email to him and his wife.

Dublin-based Geoffrey Keating claims the pop star made ”nauseatingly offensive” and false statements about him in an email sent to him and his wife last July.

Mr Keating also claims the star used the same defamatory allegations in a telephone call to his sister.

Mr Keating, who worked for Rihanna on her Diamonds tour between October 2012 and July 2013, claims the comments have tarnished his reputation and damaged the future of his business.

He is seeking damages against the singer and he also wants her to publish a correction of the alleged defamation.

Mr Keating’s solicitor Gerald Kean, was granted permission yesterday to serve the singer with the legal papers at her New York home.