Josh Duhamel gas station brentwood fergie

Leave it to Josh Duhamel to make us weak in the knees ... with wet hair at the gas station!

On Tuesday X17 photographers snapped the hunky actor out and about in Los Angeles, and over the weekend he celebrated wife Fergie's 39th birthday with their adorable son Axl. Josh posted a sweet snapshot of their little boy holding a "Happy Birthday Mommy!!!" sign, but the real treat was the singer's birthday cake, which featured a shirtless photo of her hubby!

Gotta love it!

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