Actor Alec Baldwin's and his wife, Hilaria Baldwin, are expecting their second child, and their pregnancy announcement is one for the social media age. The happy couple let their fans and the world know of their pending bundle of joy via Instagram:

"2015 is going to be very exciting as we are thrilled to announce we are expecting another little addition to our family!" Hilaria, 30, posted on Jan. 1, along with a family photo that would have conveyed the message even if it hadn't had a caption.

The picture showed the family on the beach, 16-month-old daughter, Carmen, lifting up Hilaria's shirt to expose her mom's growing belly.

Alec also took his excitement to social media, sharing his wife's Instagram post with his 1.06 million Twitter followers, along with his own announcement: "2015 equals Mommy, Daddy, Carmen and a special guest star..."

This will be the third child for Alec Baldwin, 56, who has a 19-year-old daughter, Ireland, with ex-wife Kim Basinger.