Winston Roy Followill is here!

Supermodel Lily Aldridge, 33, gave birth to her second child, a boy, on January 29, announcing his arrival on Twitter this past weekend.

"Winston Roy Followill blessed our lives January 29, 2019," she captioned an accompanying link to an Instagram photo showing the newborn's tiny toes (the original has since been deleted).

Winston is Aldridge's second child with husband rocker Caleb Followill, 37, lead singer of the Grammy Award-winning Kings of Leon. Little Winston joins big sister Dixie Pearl Followill, six. Aldridge announced her pregnancy back in August of 2018 when she posted a candid bikini selfie with her adorable little baby bump on full display.

"Surprise," she captioned the photo, which immediately garnered thousands of comments and congratulations from friends and fans alike.

But pregnancy didn't stop the hardworking new mom-of-two from continuing to slay the runway - specifically the Brandon Maxwell runway back in September for New York Fashion Week. Aldridge took to the stage on September 8 at five months pregnant wearing a beautiful, form-fitting red gown.

"So proud to walk the . . . runway 5 months pregnant!" she said after the event. "I’ve walked few runways in my life and this is a moment that I’ll look back on forever with great emotion."

The Victoria's Secret Angel added that it was fun to be backstage with "all the girls", and that everyone was incredibly supportive and uplifting.

Aldridge met now-hubby Followill at Coachella in 2007, where he and his band were performing.

"He was performing and as soon as I saw him, I couldn't stop thinking about him," she said of the first time she laid eyes on her future husband. Shortly afterwards, a mutual friend introduced them, and that was that. The couple dated for three years - she even appeared in the music video for the hit song Use Somebody - and eventually, they tied the knot in 2011. Dixie Pearl was born in Nashville in June the following year.

Although once in a while Aldridge will sneak her daughter into her social media posts, the private mom-of-two isn't keen to share her children's' adorable little faces all that often. But sometimes, she admits that she simply can't resist.

"I try to be authentic and post pictures of myself and my job. I keep my family stuff as private as possible, but there are some things that I want to post, like a cute picture of my daughter that's too precious not to share," she gushed in an interview several years ago with Net-a-Porter.

NEXT: Lily Aldridge Points To The Importance Of Self Care In Sharing Her Pregnancy Beauty Routine