The 38-year-old star took to Facebook.com on Monday (13Jul15) to break the news to fans and introduce them to her baby boy.

Alongside a photo of the newborn at a hospital, she writes, "My little baby Jerry was born on the 1st July! Here he is undergoing a hearing test which he passed with flying colours..."

The identity of the baby's father was unclear as WENN went to press.

Blasko was previously married to performance artist Cameron Semmens for three years from 1998, while she has more recently enjoyed romances with producer Robert F. Cranny and singer/songwriter Whitley.