Suggs, the Madness frontman, found details of his estranged father on his own Wikipedia page after years of searching official records.
The singer, whose real name is Graham McPherson, had hoped to be reunited with his father, who walked out on the family shortly after his birth.
After years of searching records offices and references at the British Library, a friend suggested the singer look at his own Wikipedia page.
"I looked myself up and there it all was," he told the Daily Record. "My father had died in 1975, aged just 40. The thing is, this website knew more about my life than me and my whole family."
His father had struggled with heroin and was sectioned before his death.