Des O'Connor came to prominence in the 1950s and has been a feature of the light entertainment industry ever since.
His first TV appearance was on 2 October 1954, but it was a few years later with his regular slot as the host of ITV's Spot The Tune that Desmond O'Connor as he was credited at the time rose to prominence.
He was given his own TV show, The Des O'Connor Show, in 1963.
Des O'Connor's hit songs included Careless Hands and I Pretend.
In a long career, Des O'Connor has proved successful as a singer and a TV host.
In 1977, O'Connor began presenting the Des O'Connor Tonight chat show which ran for 25 years.
Des O'Connor took over from Des Lynam as the host of Channel Four's Countdown in November 2006.
He retired from Countdown in 2008.
In September 2007 Des O'Connor married Jodie Brooke Wilson.
O'Connor had been married three times before. He met Jodie, who is Australian singer, in 1990 when they appeared together in a pantomime.