Kelleigh Bannen and Husband Jeff Grossman Welcome First Baby, Daughter Mary Grant (Exclusive)

The couple recently celebrated their 20th wedding anniversary

<p>Courtesy of Kelleigh Bannen; Jason Kempin/Getty</p> Kelleigh Bannen welcomed her first baby, a girl

Courtesy of Kelleigh Bannen; Jason Kempin/Getty

Kelleigh Bannen welcomed her first baby, a girl

Kelleigh Bannen's family is growing!

The country singer, 42, and husband Jeff Grossman welcomed their first baby together, daughter Mary Grant, on Friday, Dec. 1, a rep for the couple confirms to PEOPLE exclusively.

Born at 7:14 p.m., the musician's daughter weighed 7 lbs., 3 oz., and measured 19 inches long at birth.

Bannen drew inspiration from her late brother Grant Thomas Bannen when deciding on a name for her little girl.

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<p>Courtesy of Kelleigh Bannen</p> Kelleigh Bannen's baby daughter Mary Grant

Courtesy of Kelleigh Bannen

Kelleigh Bannen's baby daughter Mary Grant

Related: Kelleigh Bannen Expecting First Baby, Documents Journey to Pregnancy in New Music Video (Exclusive)

As she prepared to welcome her baby girl, the musician shared a sweet photo on her Instagram with fellow country singer Jessie James Decker, who is also expecting a baby. The two singers posed with their bumps together, smiling for the sweet shot.

"🌟DECKERing the Halls with this babe on the show tomorrow. 9am CT. Listening link in stories 🌟," Bannen captioned the photos.

In October, Bannen announced her pregnancy in a music video for her track "I Know Better Now," shared exclusively with PEOPLE.

The video showed snippets of the couple's relationship in black and white, starting with footage from their wedding.

<p>Courtesy of Kelleigh Bannen</p> Kelleigh Bannen's newborn daughter Mary Grant

Courtesy of Kelleigh Bannen

Kelleigh Bannen's newborn daughter Mary Grant

As the video played on, the camera panned out to Bannen singing, showing her baby bump. At the end of the video, the musician walked into a house and sat next to her husband, with the camera revealing a sonogram of the couple's baby.

"In a million years I would have never been able to predict that we'd be expecting our first baby within a month of our 20th wedding anniversary ... at 42," Bannen — who also hosts The Kelleigh Bannen Show and Today’s Country Radio on Apple Music Country — exclusively told PEOPLE.

"Jeff and I went through a lot to get here, and it just makes us that much more thankful that we get to experience the gift of becoming parents. I wake up every morning counting down the weeks until we get to meet our baby girl. This whole season has felt so precious and hopeful."

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