Billy Joel's girlfriend, Alexis Roderick, is pregnant, a representative for the singer confirmed Tuesday.

The rep told Us Weekly that Joel, 65, and Roderick, 33, are expecting the new baby "this summer," while Newsday noted that a spokeswoman for Joel said that "any further details of her pregnancy under wraps until their new addition makes an official debut."

The rep that spoke to Us Weekly "chose not to confirm whether they know the gender of their own child," the magazine reported.

The impending child will be the first for Roderick and the second for Joel, who has a daughter, Alexa Ray Joel, now 29, with ex-wife Christie Brinkley, to whom Joel was married from 1985 through 1994. Before that, he was married to Elizabeth Weber Small from 1973 to 1982, and the singer and piano player's most recent marriage, to Katie Lee, lasted from 2004 to 2009.