New Delhi, Aug. 3 -- A new Dunkin' ad campaign featuring actor Gavin Casalegno has stirred controversy online after social media users called out the brand's unexpected reference to "genetics" while promoting a summer drink.

In the video posted on July 29, 'The Summer I Turned Pretty' star says: "Look, I didn't ask to be the king of summer. It just kinda happened. This tan? Genetics. I just got my color analysis back. Guess what? Golden summer. Literally."

He continues, "I can't help it; every time I drink a Dunkin' Golden Hour Refresher, it's like the sun just finds me. So if sipping these refreshers makes me the king of summer? Guilty as charged."

Watch the advertisement below:

The ad's unusual messaging has sparked mixed reactions,...