Holly Madison and Husband Pasquale Rotella Welcome Baby No. 2

The cute couple Instagrammed heartwarming snapshots of their newborn son's tiny hand to announce the news.

Holly Madison is a new mom once again!

The former Playboy model and her husband, Pasquale Rotella, welcomed their second child, a son, on Sunday!

The couple announced the news Monday night, each sharing a heartwarming photo of their newborn's tiny hand.

Madison posted an adorable pic of her son's fingers wrapped tightly around her own, which she captioned simply with a trio of heart emjois.

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Rotella was more verbose in the caption of his sweet snapshot, which showed his son's hand resting on his own.

"What an incredible week," he shared. "Yesterday Holly, Rainbow & I welcomed a healthy 8-pound, 14-ounce baby boy to the family. Now I'm holding my beautiful son at the hospital reading amazing birthday wishes from all of you. Definitely one of the most memorable weeks of my life!"

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Rotella promised that the family will be sharing a ton of photos of their brand new bundle of joy once they take him home.

The couple, who began dating in 2011, welcomed their daughter, Rainbow Aurora, in March 2013. Later that year, in September, the two tied the knot at Disneyland.

Congrats to the happy couple!

Check out the video below for a look at a few other celebs who are expecting later this year.