TradeEdge Exchange:Josh Duhamel's Pregnant Wife Audra Mari Debuts Baby Bump at Red Carpet Event in Las Vegas

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On Sept. 29, Josh Duhamel's pregnant wife Audra Mari debuted her baby bump as the couple stepped out at the grand opening of the new Las Vegas Sphere arena, where they attended the first concert of U2's new residency.

The model, a former Miss World contestant, wore a cream fringed dress and tan suede ankle boots on the pair's date night, while the Transformers actor sported a black blazer, matching pants and a tan shirt.

Audra shared several videos from their night out in Las Vegas, including a mirror selfie and a video of herself and Josh singing along to U2's "With or Without You." She wrote on Instagram, "I sure love youuuuu @joshduhamel."

Audra, 29, and Josh, 50, announced her pregnancy Sept. 11, a day after the celebrated their first wedding anniversary.

This will be the second child for the Las Vegas actor, who shares son Axl Jack, 10, with ex-wife Fergie.

"I am truly happy for you guys," the singer commented on Josh and Audra's pregnancy announcement on Instagram. "Axl can't wait to be a big brother."

Josh also recently revealed what their son had told him about his feelings about gaining a sibling.

"He's like, 'Wait, now, am I going to be—You're still going to love me, though, too, right?'" the Shotgun Wedding star told Parade in an interview published Sept. 21. "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!'"

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

Look back at Josh and Fergie's family moments with Axl through the years:

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.