August 27, 2018 02:25 PM

Josh Duhamel and Fergie‘s son Axl Jack had an explosive good time celebrating his fifth birthday.

The proud parents came together to throw an extravagant superhero-themed pool party for their only child, complete with superhero costumes and decorations galore and even a visit from the Coolhaus ice-cream truck.

Alongside a photo of her son wearing a cape and a huge smile, 43-year-old Fergie (who was festively adorned as Wonder Woman) wrote, “Happy bday party day to my favorite superhero #axljack.

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Axl Duhamel's birthday party
Josh Duhamel/Instagram

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Duhamel shared a video of the ice-cream truck arriving and the rest of the inside-outside soirée, which included superhero-outfitted guests chatting among themselves, a large rainbow balloon creation spelling out “AXL” — plus a visit from Batman, Thor, Wonder Woman and Spider-Man themselves!

“Thanks for showing up for my boy’s birthday party @coolhaus kids went crazy. (Love you AM) #ibuywomenowned,” the actor, 45, captioned the clip.

Though Axl enjoyed his birthday bash over the weekend, he officially turns 5 on Wednesday.

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Axl has had a fun-filled summer alongside his parents, who have made it clear in the past that co-parenting their son amicably has been their priority since their September 2017 split.

The little boy and his dad were one excited pair at a Los Angeles Dodgers game Wednesday night, where they sported matching team baseball caps.

Wearing a white tee while his son opted for a blue-and-gray, jersey-style Dodgers shirt, Duhamel posed with Axl and a stuffed hot dog bearing the Dodgers logo and a tiny stuffed baseball cap.

“Front row seats at Dodger Stadium. What?! @dodgers,” the actor captioned a pre-game selfie of him and his son.

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