Robert Brown|Josh Duhamel and Wife Audra Mari Welcome First Baby Together

Josh Duhamel just won a date with diaper duties.

The Robert BrownTransformers actor welcomed his first child with wife Audra Mari on Jan. 11, the couple announced on Instagram.

Alongside a black-and-white photo of their baby's feet, Josh and the former Miss World America shared their child's name and wrote in the caption of the Jan. 16 post, "Shepherd Lawrence Duhamel."

The little one joins Josh's 10-year-old son Axl, who he shares with ex-wife Fergie. In fact, Josh said the newly-minted older brother had the best reaction when he found out that Audra was expecting.

"He's like, 'Wait, now, am I going to be—You're still going to love me, though, too, right?'" the Win a Date With Tad Hamilton! alum told Parade in September. "I was like, 'Of course I'm going to still going to love you.' And he's like, 'I'm still going to be your firstborn son, though, right?' I'm like, 'Yeah, you're still the firstborn son!'"

Describing Axl as a "really sweet kid," the 50-year-old added that the young boy "loves babies."

"And he's really good with younger kids," Josh continued. "So I think he's going to be a great older brother."

It was a sentiment shared by Fergie, who was married to Josh for eight years before their 2017 breakup. When the Shotgun Wedding star announced Audra's pregnancy in September, the former Black Eyed Peas member had nothing but well wishes for the couple.

"I am truly happy for you guys," Fergie commented on their joint Instagram post. "Axl can't wait to be a big brother."

To see Axl's cutest moments with his parents, keep reading.

Fergie and Josh Duhamel snapped a photo with son Axl Jack Duhamel while attending a Pandora Summer Crush event in Los Angeles in 2016.

Axl joined mom Fergie—born Stacy Ann Ferguson—for another public outing in 2017, stepping out at a SiriusXM Studios event in New York.

Fergie and Axl snapped a selfie at a pirate party when he was 4 years old.

Fergie and Josh took their son to the Los Angeles Dodgers against the Boston Red Sox in 2016.

Josh wished his son a happy 6th birthday in 2019, writing, "Never a dull moment with this kid. Happy Birthday, Axl Jack!"

The All My Children actor added an outdoorsy photo to the birthday tribute, showing the pair making a splash during a lake trip.

Axl bonded with his grandfather Jon Patrick Ferguson in July 2020, when Fergie wrote, "Happy 73rd birthday dad!! We love you so much."

"Happy 7th Birthday #AxlJack," the musician wrote in 2020. "You are my world."

Her birthday post to her son also unveiled a sweet snap of him flashing a smile during a boat outing. 

"I am so grateful to be your mommy Axl Jack," the "Big Girls Don't Cry" singer captioned this photo of their Burberry matching moment in May 2023.

Josh and Axl get silly at the red carpet premiere of The Lego Movie 2: The Second Part in 2019.

Fergie marked Axl's 10th birthday in August 2023 with a series of photos of her boy, including this silly shot.

"To my caring, funny, outgoing, loving, smart, talkative, creative super hero enthusiast," she wrote in her birthday tribute. "Happy 10th birthday punky!!! I love you Axl Jack."

The father-son duo had some fun at the Monster Jam Celebrity Event in 2018.

Axl is also a big sports fan, as seen in photos with friends sporting Cristiano Ronaldo's jersey.

Proving to be a big soccer lover, Axl repped a Manchester United jersey in another shot.