IN 2003, the UK's former prime minister Tony Blair and his wife Cherie visited Tsinghua University in Beijing. Students asked Blair to sing. He refused but Cherie stood up and sang a song from the Beatles When I'm Sixty-Four. Three years later, Cherie admitted that she had not realized that her performance that day had been recorded. “My daughter Kathryn said that if I ever sang [the song aloud] again, she would divorce me,” Cherie was quoted as saying.