Singer/songwriter Dido celebrated her 40th birthday on Christmas Day as a new mom - sources close to the star have revealed she gave birth to a baby boy this past summer.

The singer and writer husband Rohan Gavin have named the child Stanley, who ironically shares the name of the obsessive, suicidal fan in Eminem's "Stan" tune, which heavily featured a sample from Dido's hit "Thank You."

The newborn is the singer's first child.

Britain's Daily Mail reports little Stanley was born in London in July. Dido, whose full name is Dido Florian Cloud de Bounevialle O'Malley Armstrong, announced she was pregnant via her website in February.