Dunkin’ will run a national Super Bowl ad starring Ben Affleck that marks the coffee and donut chain's first-ever Big Game commercial.

The actor, who is a fan of the chain, was spotted last month serving drinks at a Dunkin’ drive-thru in Medford, Massachusetts, sparking rumors that it would be for a Super Bowl ad, according to January reports in outlets including Complex and TMZ.

A person familiar with the matter confirmed to Ad Age that Affleck will indeed appear in a Big Game ad. His wife, Jennifer Lopez, was also spotted with him, but it is unclear if she will appear in the ad. 

“We’re airing our first-ever Super Bowl ad this year, but you'll have to tune in on Sunday to see what’s 'Ben' brewing,” Jill Nelson, Dunkin's chief marketing officer, said in a statement without revealing too much about the chain'splans. 

Dunkin' hinted at the ad strategy on Instagram and Twitter on Monday. 

Anomaly appears to be behind the ad. The agency recently lost the Dunkin' account to Leo Burnett; the ad looks to be one of the agency’s final pieces of work for the brand.

Anomaly also worked on ads for Bud Light and Crown Royal for this year’s Big Game.

Affleck’s appearance at the Massachusetts Dunkin’ was captured by people there and shared on social media, including this Instagram post dated Jan. 10.

A video shared by @PopFactions shows Lopez joining him.

Affleck’s Dunkin’ fandom is so well known that some people joked on social media that he would rather be there than at the Grammys, where he was often shown looking a bit down during Sunday’s broadcast of the awards show on CBS.

Contributing: Jessica Wohl, Jon Springer