Krispy Kreme is set to make this St. Patrick's Day extra special with a fresh and festive doughnut collection launching on March 11. The new flavors include the Luck of the Rainbow Doughnut, Shamrock Cookies 'N Kreme Made With OREO Cookies, Plaid Party Doughnut, and Shooting Shamrock Doughnut. And the beloved green O'riginal Glazed Doughnut is making a triumphant return.

But here's the real treat – from March 15 to 17, show up at participating Krispy Kreme shops dressed in green, and you'll snag a FREE green O'riginal Glazed Doughnut. It's a tasty way to spread the St. Patrick's Day luck.