McDonald’s is bringing back its beloved Shamrock Shake with the help of an old friend. The minty green milkshake will return to restaurants on Monday, Feb. 10 — and the chain’s Uncle O’Grimacey character is returning after a decades-long hiatus to help kick off the annual “Shamrock Season.”

Grimace and Uncle O’Grimacey are welcoming the Shamrock Shake back to restaurants nationwide on Monday, Feb. 10

Although Punxsutawney Phil did not see his shadow, declaring six more weeks of winter, McDonald’s just brought back their fan-favorite spring product to start the season early. Who needs Groundhog Day—the Shamrock Shake’s return means spring has begun.