Cat Deeley and Patrick Kielty are "beyond delighted" at the birth of their first child.
Deeley announced the birth of her baby son on her Twitter account, saying she and Kielty "couldn't be happier" after the birth last week.
The 39-year-old married comedian Kielty in September 2012, having been longtime friends, and revealed in September that they were to become parents.
Announcing the birth, Deeley tweeted: "Beyond delighted to announce the birth of our baby boy last week. All doing well & we couldn't be happier ... 3 really is the magic number!"
Kielty retweeted the post.
The 44-year-old from Northern Ireland had previously joked about having children with Brummie Deeley, saying: "I hope any child we might have has Cat's looks and my accent.
"With our two strong accents, we basically needed subtitles or a UN translator."