• September 29, 2010

Between now and Oct. 20, fans are being asked to submit, through Dunkin's Facebook page, 60-second videos that demonstrate why they qualify to be named "the most passionate and loyal fan" of the chain's coffee. (Videos can't be shot in Dunkin' restaurants.)

The winner and finalists will be determined by online voting and scoring of each submission by a panel of judges, based on passion for the brand, overall video appeal, originality and creativity.

The grand prize includes a trip for two to Costa Rica, a trip for two to Boston (to tour Dunkin's world headquarters), and 60 months of free Dunkin' coffee (delivered to the winner's home).

The 10 finalists will each receive 12 months of free Dunkin' coffee, delivered to their homes.