South gate. The band sang in the south gate of Xi 'an city wall. This is Xi 'an's online celebrity punching point. There are also many famous bands here. Xi 'an, referred to as "Gao", was called Chang 'an and Haojing in ancient times. It is the capital of Shaanxi Province, a sub-provincial city, a megacity, the core city of Guanzhong Plain urban agglomeration, and an important central city in western China determined by the State Council.