Krispy Kreme is making St. Patrick’s Day extra sweet with a lineup of four festive doughnuts, plus a major giveaway that will allow thousands of lucky customers to win a Pot of Gold Pass — scoring them a dozen free doughnuts every month for a year.

The new move joins other McDonald’s in major cities like Chicago, Cleveland, Indianapolis, Pittsburgh and Louisville, which already serve the treats. More than half of all McDonald’s restaurants in the United States are set to serve Krispy Kreme doughnuts by the end of the year.

Krispy Kreme on Monday launched an all-new doughnut collection inspired by St. Patrick's Day. Here's a look at the new flavors.