Kimora Lee Simmons officially tied the knot with Goldman Sachs investment banker Tim Leissner.

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Her ex-husband, Russell Simmons, tweeted the news on Thursday, following recent rumors that the former model was dating rapper Birdman. 

"All of us love @OfficialKimora but the fact is she is happily married...Tim is has been family for a while now. #gossipcop...." Simmons wrote on Wednesday.

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He then added another tweet that said, "Oh. And.. Tim is not Russian. Lol."

Lee Simmons and her husband were seen at a St. Barts beach in December. The former model was wearing a black and white bikini with a pinkish splotch as Leissman sported a blue collared shirt and white shorts.

The 38-year-old has yet to tweet anything related to her marriage since her latest tweet was posted on Monday.

"From sea to cobalt, blue is the season's hottest hue! And it's all for YOU!" she wrote followed by a link to the online retailer JustFab and the hashtag "#GotTheBlues #AllForYou."

Lee Simmons was married to Russell Simmons from 1998 to 2009. They have two children together -  Ming Lee Simmons, 14, and Aoki Lee Simmons, 11.

The star was later involved with actor Djimon Hounsou and the two have a 4-year-old son named Kenzo Lee Hounsou.

"Relationships do change throughout the course of your life, and I always think in terms of relationships changing and evolving rather than starting and stopping," she told the U.K.'s Daily Mail after her split from Hounsou.