Chris Hemsworth and wife Elsa Pataky are celebrating the eighth birthday of their twin sons, Sasha and Tristan.

The “Avengers” star shared a photo with his 53.9 million Instagram followers, in which the twins are dressed as their dad’s Marvel superhero, Thor, complete with hammers.

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The boys’ mom also shared an Instagram post wishing them a happy birthday, sharing that photo and a few others.