At a victory rally for President Donald Trump on Monday, tech billionaire Elon Musk brought his son X Æ A-Xii (pronounced ‘X Ash Archangel’) on stage with him.

Following Trump’s praise of Musk’s recently launched rocket, X ran on stage to run around the legs of his father and the new president.

Musk went to speak and X, 5 years old, bounced next to his father in front of a laughing crowd.

Elon Musk’s Son, X Musk: Photos & News

Musk joked, “Little X just followed me on the stage here – he’s a very enthusiastic supporter, as you can see.”

X waved at the adoring audience.

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While many internet users fawned over the arrival of Musk’s cute child, others pointed out the thinly veiled attempt to pass the publicity stunt off as an accident.