Former presidents Jiang Zemin and Hu Jintao sing the national anthem next to China's President Xi Jinping during the opening of the 19th National Congress of the Communist Party of China at the Great Hall of the People in Beijing

Former presidents Jiang Zemin and Hu Jintao sing the national anthem next to China’s President Xi Jinping during the opening of the 19th National Congress of the Communist Party of China at the Great Hall of the People in Beijing

Former Chinese presidents Jiang Zemin and Hu Jintao sing the national anthem next to Xi Jinping during the opening of the 19th National Congress of the Communist Party of China at the Great Hall of the People in Beijing on October 18, 2017. Photo: Reuters / Jason Lee

October 18, 2017 1:30 PM (UTC+8)