A new Dunkin' Donuts ad has people on social media in a furor over "genetics" for the second time this week .

The breakfast food franchise released a short spot for its new summer Refresher drinks on Tuesday featuring "The Summer I Turned Pretty" star Gavin Casalegno. During the 35-second ad, the actor credited his summer tan to his "genetics."

"Why are ads so obsessed with genetics all of a sudden," one user commented on the ad on TikTok, getting nearly 28,000 likes for the post.

In the ad, Casalegno sat near a swimming pool holding his Dunkin' Golden Hour Refresher beverage while he referenced his pop culture status as the "king of summer" along with his tan.

"Look, I didn’t ask to be the king of summer. It just kind of happened," he said. "This tan? Genetics. I just got my col

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