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Kimora Lee Simmons, Tim Leissner

Araya Diaz/Getty Images

Just some fab news coming from Kimora Lee Simmons' corner.

The TV personality and fashion designer has welcomed a son named Wolfe Lee Leissner with businessman husband Tim Leissner, their first child together, People reported Tuesday.

"We are filled with joy, adoration and gratitude as we celebrate the birth of our son," the couple said in a statement. And sure enough, mom is metaphorically howling with excitement: Her rep says she's doing well and is "ecstatic."

Little Wolfe is Simmons' fourth child overall. The JustFab president is mom to daughters Ming Lee and Aoki Lee Simmons with hip-hop and fashion mogul ex-husband Russell Simmons and has a son, Kenzo Lee Hounsou, with ex-beau Djimon Hounsou.

Simmons and Leissner snuck off and tied the knot possibly as far back as December 2013, when they were spotted on a Caribbean family vacation with rings on their fingers. Russell Simmons was the one who let the rest of the world in on the secret, tweeting in February 2014 that they were indeed married.

And while Wolfe's exact date of birth has not yet been revealed, Simmons was still pregnant three weeks ago—she glamorously draped her baby bump in a full-length black gown for the Goldman Sachs Partners' Ball, which she of course attended with her financier hubby.

"#BabySTILLonBoard," she noted cheekily.

#GoldmanSachs #PartnerBall 2015. Special thanks to #EdithCooper. #cousin #BabySTILLonBoard????????

A photo posted by Kimora Lee Simmons (@officialkimora) on