What's the name of the man singing in the park?

The man singing in the park is called Cao Ying. Because the host Cao Ying shared a video of singing in the park on the social platform, and showed himself from different perspectives of passers-by and photographers. There were many passers-by around that day, and I saw Cao Ying standing with his legs crossed. She said it was to match the photographer's height, so the singer in the park was called Cao Ying.