Billy Joel and his girlfriend Alexis Roderick, who announced on April 15 that they were expecting, are having a daughter, acccording to an Instagram post from Alexa Ray Joel, his daughter with second wife Christie Brinkley.

Alexa Ray Joel, 29, a singer-songwriter, wrote, "Marveling at Mamacita's 'Plushly-Pretty as a Parasol' Bouquet / Gifted as a blossoming-toast to Profound-Pop and his Selfless-Sweetheart yesterday / For these blush and fuchsia fleurs seem to be the perfect way / For a sappy-gal like me to share with the world, as I proudly relay...... I'VE GOT A BRAND-NEW, SOON TO BE LITTLE SISTER ON HER WAY!!!/ Frankly, I've always savored being the eldest child anyway / And the ones I cherish most favorably have always been my siblings, if I may daresay / So lucky me, and let's toast my Dearest Dad and his Due-Darling today / With Cheers, Moved Tears, Sweet-Sentiments.... Yippee, Whoopee, Hooray!!! #themorethemerrier."

In 2010, a year after separating from his third wife, food critic and chef Katie Lee, Long Island Music and Rock and Roll Halls of Famer Joel began dating Roderick, then a senior risk officer in the Garden City office of the financial institution Morgan Stanley.