Red horse. Yu Fengming's mother-daughter daily quarrel has attracted nearly 5 million netizens to watch on the short video platform. The background music in her video is called Red Horse, which fits the style of the video. Background music, also known as accompanying music and soundtrack, usually refers to a kind of music used to adjust the atmosphere in TV series, movies, animations, electronic games, and websites. It is inserted into dialogues to enhance the expression of emotions and achieve a kind of atmosphere that attracts the audience. An immersive experience.