Alicia Keys and Swizz Beats

Alicia Keys and Swizz Beatz attend Keep A Child Alive's 7th annual Black Ball at Hammerstein Ballroom on September 30, 2010 in New York City.

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Alicia Keys and her husband Swizz Beatz are expecting their second child.

The couple announced the news via Instagram, with Keys writing, "Happy Anniversary to the love of my life @therealswizzz !!. And to make it even sweeter we've been blessed with another angel on the way!! You make me happier than I have ever known! Here's to many many more years of the best parts of life!"

In a separate message, Beatz wrote, "Love is life & life is love and we're so excited for another GIFT from up above Happy Anniversary my Goddess 4 years of greatness & cheers to 100 plus more inshallah." ["Inshallah" is Arabic for "God willing."]

The couple married in 2010, and have a son, Egypt Daoud Dean, age 3.

Accompanying their messages were gorgeous photos of the clearly thrilled couple. Check them out below: