The Black Eyed Peas singer gave birth to her first child with her actor husband on August 29, and the couple has now revealed the first snaps of their bouncing baby boy via social media, reported Aceshowbiz.
Duhamel, 40, shared the first picture of Axl on his Twitter account, which sees the baby sound asleep and wrapped up warm in a blanket and hat.
He captioned the photo, writing, "Axl Jack Duhamel Day 1. Life is good."
The Transformers hunk also appeared to joke about the influx of photographers surrounding the couple's LA pad in a bid to nab the first pictures of the newborn.
While Duhamel chronicled his son's first day of life, mum Fergie, 38, quickly followed up with a picture of little Axl's eventful second day on earth.
The little tot is seen with what appears to be medical headphones attached to his ears in the snapshot as he undergoes a hearing test.