Mice painted in the Palestinian flag were released into a Birmingham branch of the chain.
The fast-food chain is offering a promotional Grimace Shake in honour of the character’s 52nd birthday, and Gen Z is turning it into a pretty solid joke.
The Normal People star kept it real after winning big at this year's Olivier Awards.
A McDonald’s Employee Shares Some Interesting Tea About McDonald’s
The comment was likened to David Cameron's "pasty at Leeds Station moment".
It comes after McDonald's shut down all of its restaurants in the country over the "needless human suffering" in Ukraine.
The "golden arches" arrived in Moscow in 1990, and became an iconic symbol of American capitalism as the Soviet Union fell.
The tweet showed Mariah standing in a red dress in front of what appears to be an underwater McDonald's.