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

The Pot of Gold Doughnut, Over the Rainbow Doughnut, Choco-Shenanigans Doughnut and St. Patty’s Swirl Doughnut are available starting Tuesday, March 11

Krispy Kreme is bringing back a fan-favorite doughnut, and fans can get one for free. They’ll have to dress the part, though. Starting Saturday, March 15, anyone wearing green can get a free O’riginal Glazed doughnut at participating Krispy Kreme shops nationwide, according to the Charlotte-based doughnut chain.