Transformers star Josh Duhamel and his wife Audra Mari are expecting their first child together.

The couple made the announcement in a joint Instagram post, sharing a photo of Audra's hands holding an ultrasound scan.

"Baby Duhamel coming soon," read the caption alongside a white heart emoji.

josh duhamel and wife audra mari attend the nymphes dor golden nymphs award ceremony in monte carlo, monaco
Pascal Le Segretain//Getty Images

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Twilight star Ashley Greene was one of many to react to the happy news. "Congratulations you beautiful people!!," she wrote with a red love heart eyed emoji.

Riverdale actor Lochlyn Munro also commented: "Congrats, my friend!!"

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Duhamel's ex-wife, Black Eyed Peas singer Fergie, additionally shared a sweet message on the Instagram post. "I am truly happy for you guys," she wrote. "Axl can’t wait to be a big brother."

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Duhamel shares 10-year-old son Axl with Fergie from their previous marriage.

Appearing on US chat show Live With Kelly and Mark on Wednesday (September 13), Duhamel revealed that his son was excited about the news and had even suggested a name for his sibling.

"He likes Gary. He wants to name the baby Gary,” the actor said.

josh duhamel visits the siriusxm studios in new york city
Cindy Ord//Getty Images

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Clearly not a big fan of the name suggestion, Duhamel added: "I think if we have a dog, we’ll name it Gary."

The Shotgun Wedding actor also praised his ex-wife and her reaction to the baby news.

"Fergie is an amazing woman. She really is. And she’s taken Audra in, you know, and it could be much worse," he said in an interview on The Jess Cagle Show on Thursday (September 14).

"She only has love for Audra and is excited as well, I can’t believe how excited she is for us. You know, it’s like I said, it could be a lot worse, and I’ve seen it. I’ve lived it. And thankfully we have a really civil situation."

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Emily is an experienced freelance entertainment writer and editor, reporting on all things TV, film, soaps and showbiz. An NCTJ-qualified journalist, with a First Class Honours degree in Journalism from the University of Sussex, Emily is a former Deputy News Editor and Evening News Editor at Digital Spy. She has previously worked at Hello magazine, BBC South News and GoodtoKnow.
  A small and big-screen obsessive – with subscriptions to every TV and film service under the sun – Emily knows her movie stars from soap stars, and is always clued up on the latest reality show dumping, just-dropped trailer or off-screen spat. She's interviewed a number of celebrities over the years, with highlights including The Masked Singer host Joel Dommett and GMB's Kate Garraway (who "loved" her trousers).
  Emily counts Sharon Horgan and Julia Davis as her TV heroes, and is a loyal Wes Anderson fan. LinkedIn