Beyonce halted her concert in Glasgow on Thursday night to hold a minute's silence in memory of two black men shot dead by police in the US this week.
The singer paused her show at Hampden Park Stadium as a giant screen was illuminated with the names of Philando Castile, Alton Sterling and dozens of other victims of police shootings in America.
Fans described being moved to tears by the tribute that hushed the huge crowds at the 50,000-seat arena.
Beyonce followed the memorial with an a cappella performance of Freedom, a recent release with themes associated with the Black Lives Matter movement.
In a message posted on her website, Beyonce called on her followers to "take a stand and demand that they 'stop killing us'," after footage emerged appearing to show Castile, a 32-year-old from Minnesota, slumped in his car after he had been shot by a police officer.
The policeman is alleged to have opened fire while Castille's girlfriend and her daughter were sat in the car.
It comes after 37-year-old Alton Sterling was shot dead by police in Baton Rouge, Louisiana, on Tuesday.
The deaths have sparked fresh demonstrations in the US and President Barack Obama said that the killings were "an American issue that we should all care about".
Beyonce's online message to US politicians said: "We don't need sympathy. We need everyone to respect our lives... Fear is not an excuse. Hate will not win."
Footage of her Glasgow concert tribute was also shared online: