'Piano Man' Billy Joel is a married man

Story highlights

  • New York Gov. Andrew Cuomo presided over ceremony
  • This is Billy Joel's fourth marriage

(CNN)Musician Billy Joel has married his longtime girlfriend, Alexis Roderick.

The couple surprised guests and exchanged vows at their annual July 4th party, according to Joel's publicist, Claire Mercuri. This is Joel's fourth marriage.
Joel, 66, and Roderick, 34, have been together since 2009 and are expecting their first child this summer.
His former wife, Christie Brinkley, posted well wishes on Instagram.
"Congratulation to the glowing bride and groom," she said. " And to my daughter Alexa, who has a wonderful friend in Alexis! Wishing the growing family every happiness!"
Alexa Ray Joel and actor Kevin James were in attendance along with other close family and friends.
The ceremony was held at Joel's Long Island estate and was presided over by New York Gov. Andrew Cuomo -- a longtime friend.
Joel, who's known for songs such as "Piano Man," "Big Shot" and "Just The Way You Are" is on tour and setting performance records.
He played his 65th show at Madison Square Garden on Wednesday -- surpassing Elton John as the artist with the most concerts at the arena.