Fergie and Josh Duhamel are expanding their family!

The Black Eyed Peas singer and her husband announced that they've got a baby on board Monday via Twitter.

"Josh & Me & BABY makes three!!! #mylovelybabybump," she Tweeted.

This is the first child for the twosome, who tied the knot in January of 2009.

During Josh's recent Safe Haven premiere, Fergie couldn't hide her expanding tummy under a loose dress.

Congrats to the happy couple!
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