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.

Krispy Kreme is bringing a little more sweet magic to your mornings with an all-new limited doughnut collection. But this time, it's bringing along a friend to up the ante. On Wednesday, the doughnut shop announced it's bringing back the Chocomania Collection.

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