Beyonce and Kendrick Lamar wowed the crowd with a joint performance at the BET Awards Sunday. Tributes to Muhammad Ali and Prince moved the audience and viewers at home. But actor Jesse Williams, who played Dr. Jackson Avery on ABC’s Grey’s Anatomy, stole the show with an eloquent civil rights speech after accepting the Humanitarian Award. “If you have no interest in equal rights for black people then do not make suggestions to those to those who do. Sit down,” he said. The annual event celebrating African Americans in the arts and entertainment is consistently the highest rated awards show on cable, and it’s BET’s highest rated show.