“Josh & Me & BABY makes three!!! #mylovelybabybump,” tweeted Fergie, as Duhamel echoed the words on his own Twitter account.

The Black Eyed Peas singer and her actor hubby have been rumoured to be having a little one since they got hitched in 2009.

Now, it's finally true!

A few months ago, Fergie joked about how much fun it is trying for a baby: “We'll be happy when it happens. It's not really in our hands but trying is great for our relationship.”

And we know at least one other celeb who's as excited as the soon to be parents - Fergie's bandmate, Apl.de.ap.

“Fergie's great and it would be amazing if she and Josh had a baby. I would definitely love to be godfather. It'll be one cool baby and she's such a cool lady,” said Apl.de.ap when asked about his band mate a few months ago.

We're excited about a Fergilicious baby, are you?