The birthday party included a special Grimace shake that took the country by storm. The purple concoction was a berry-flavored milkshake that honored the big purple guy for his annual jubilee.

The Grimace Birthday Meal, including a choice of Big Mac or Chicken McNuggets and purple milkshake, will be available at McDonald's starting on June 12, 2023.

Grimace Shake 2024 Last year McDonald's celebrated with the Grimace Shake from June until late July, but as of his official birthday, there's been no word of the shake coming back this summer ...