McDonald's has confirmed that its viral milkshake, the Grimace Shake, will be making a limited-time appearance in the UK. The fast-food giant verified whispers that the purple drink would be available at select locations across the country. For one week only, from Wednesday, August 28 to Tuesday, September 3, McDonald's patrons can get their hands on this internet sensation.

The Grimace Shake, inspired by the purple character, is a blend of blueberry syrup and a creamy milkshake base, creating the perfect purple concoction. The beverage will cost between £2.69 and £2.

99 for a medium or large size, respectively. As McDonald's UK celebrates its 50th anniversary this year, it seems fitting to introduce the Grimace Shake nationwide. Those in or visiting London on Monday, August 26, can get an early taste of the Grimace Shake at BoxPark Shoreditch from 12pm-6pm.

However, once they're gone, they're gone. Everyone else will have to wait until August 28 to sample the purple drink. So, fans should hurry, not stroll, to secure a Grimace Shake, reports the Mirror .

McDonald's is set to launch a new menu on Wednesday, September 4, featuring the introduction of a brand new Twix Latte. Other returning favourites include the Philly Cheese Stack, Chicken Big Mac, Mozzarella Dippers, Mozzarella Dippers Sharebox, Twix McFlurry, Twix McFlurry Mini, Galaxy McFlurry, and Galaxy McFlurry Mini. Wednesday, September 4 also sees the return of McDonald's Monopoly, offering customers the opportunity .