A series of high-profile entertainers and athletes have spoken out against police brutality and in support of the Black Lives Matter movement, including Beyoncé, Stevie Wonder and tennis star Serena Williams, who said: “To those of you involved in equality movements like Black Lives Matter, I say this: Keep it up. … We’ve been through so much for so many centuries, and we shall overcome this too.” Williams won her 22th Grand Slam tournament when she won Wimbledon on Saturday.