Natalie Imbruglia said her "heart is bursting" after welcoming her first child.
The Australian singer-songwriter, whose hits include Torn and Wrong Impression, gave birth to a boy named Max Valentine and announced the news on Instagram.
Alongside a picture of the newborn's hand clutching her thumb, she wrote: "Welcome to the world.. Max Valentine Imbruglia. My heart is bursting."
Imbruglia, 44, announced she was expecting in July, telling fans she got pregnant with the help of IVF and a sperm donor.
She had said she had wanted to be a mother for a "very long time" and she was "blessed" to conceive.
Imruglia first found fame after starring as Beth Brennan in the Australian soap neighbours.
She began her singing career three years after leaving the show and had a worldwide hit with her cover of Ednaswap's song Torn.
Australian Associated Press