Luann de Lesseps and Thomas D'Agostino Are Officially Married

It's official! The woman formerly known as Countess Luann de Lesseps is now Luann D'Agostino. The Real Housewives of New York City's mom said "I do" to Thomas D'Agostino in front of family and friends in Palm Beach on December 31, less than a year after he proposed back in February. The Big Apple mom planned the big day out so that it not only celebrated their union, but also New Year's Eve and her new hubby's 50th birthday.

As she previously revealed to The Daily Dish, Luann's son, Noel de Lesseps, was the ring bearer, while her daughter, Victoria de Lesseps, was the flower girl.

The bride walked down the aisle in a gown by New York City-based designer Randi Rahm. "I wanted it to be traditional, but I didn't want it to be poofy or anything like that. I wanted it to be very figure-flattering so that through the lace you can see my shape, I wanted to look traditional, but I wanted to look sexy," Luann told us back in November.

In fact, the designer and the RHONY newlywed worked together to design three looks for her big day. "I love her as a designer. She's super talented when it comes to bridal and pretty dresses [for the] red carpet. So for this occasion, It's a big night! We're getting married. It's Tom's 50th birthday. And it's New Year's Eve," Luann said. "So, only Randi can incorporate all of those things into three dresses for the evening."

That leads us to wonder what she has planned for the honeymoon. What we do know for sure is that she looked absolutely stunning at their rehearsal dinner.

The event was also attended by Dorinda Medley (who introduced the couple), RHONY alum Jill Zarin, as well as The Real Housewives of Atlanta's Cynthia Bailey.

Mazel to the D'Agostinos!

Find out more wedding scoop, below.

Luann de Lesseps Reflects On Her First Wedding