It's a day you can look forward to all year, the day your McDonald's starts serving Shamrock Shakes! It means St. Patrick's Day is around the corner and for a limited time McDonald's celebrates with their mint flavored green shake.

This year McDonald's announced they will be adding four new Shamrock Shake flavors! In addition to original green mint shake, McDonald’s menus will now feature a Chocolate Shamrock Shake, a Shamrock Chocolate Chip Frappé, a Shamrock Hot Chocolate and a Shamrock Mocha. Apparently, the Chocolate Shamrock Shake has been on McDonald's "secret menu" for years but now they're allowing it on the menu board!

While some locations have already started selling the shakes, most restaurants will start selling them tomorrow (2/7).

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