Chrissy Teigen has started an online trend.

The hilarious star, 33, unknowingly started the #ChalkboardChallenge after posting an adorable photo of her son Miles celebrating being 9-months-old.

In the sweet shot, Miles sits up holding a sign that reveals he has two teeth, loves the song “Baby Shark” but does not like “quinoa.”

RELATED: Chrissy Teigen Wants Interviewers To Stop Asking John Legend ‘How Do You Deal With Your Wife?’

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9 months of this perfect 🐻💕

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After fans took notice of how much little Miles looks like his father John Legend, the crooner, 40, posed for a photo himself.

RELATED: Chrissy Teigen Asks For A Goddaughter Named ‘Bea’ So Princess Beatrice Offers Up Herself

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wow they grow up so fast

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But Teigen soon got fans participating and sharing their own photos using the hashtag, #ChrissysChalkboardChallenge. Some have even caught the attention of the model.

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