Tony Bennett has been forced to cancel his Sunday gig at the Bord Gais Energy Theatre in Dublin after contracting a flu virus.

The 19-time Grammy winner had to cancel his concert after being advised by his medical doctor to rest and recover for the next few days.

A statement said that he sends his "deepest regrets to all his fans in Ireland" adding that he was "greatly looking forward to being back in Ireland again where he has received such a warm response from audiences over the years."

Fans who bought tickets to the sold-out gig can get refunds from point of purchase.

Bennett was due to perform in Dublin on June 25 as part of his Tony Bennett Celebrates 90 In Concert tour.

The 90-year-old singer achieved his first number one single in 1951 with Because Of You, and has had a prolific career since then.

Tony Bennett and Lady Gaga collaborated in 2014

In 2014, he collaborated on Cheek to Cheek with Lady Gaga which debuted at number one in the Billboard Album charts.