"Look what we made! Introducing Mack James Willesee. Delight by day, devil by night!! Overwhelmed with love #ourbabyboy", she captioned the sweet snap.
The 60 Minutes reporter and her husband have been married for 8 years.
News reader Allison Langdon has welcomed her first baby with husband Mike Willesee Junior and it's a boy!
The journalist, 37, has taken to Instagram to share the first snap of her son.
"Look what we made! Introducing Mack James Willesee. Delight by day, devil by night!! Overwhelmed with love #ourbabyboy", she captioned the sweet snap.
The 60 Minutes reporter and her husband have been married for 8 years.