In 1979, Mercury was enlisted by the Royal Ballet at a charity gala at the Coliseum Theatre. Not many other pop stars could have pulled it off. He sang Bohemian Rhapsody and Crazy Little Thing Called Love while being carried around and held upside down by the dancers. Beside the case at the Old Truman Brewery containing Mercury's ballet shoes, the story of an encounter between the Sex Pistols and Queen is told. "Ullo, Fred, I see you've brought ballet to the masses then," said Sid Vicious. "Oh yes, Mr Ferocious, trying my best, dear," Freddie replied.