The background music for the reunion between Li Honghai and his classmates is called "Changjuju". According to relevant public information: Lyrics of the song "Always Juju", composed by Li Honghai, sung by Populus Hu, and sung by Li Mingyang, lyrics Friends often get together, friendship is sincere and valuable, it doesn't matter what you eat, you are happy when you meet, no matter what you drink, wine or water, clink glasses with your heartfelt blessings The hearts are drunk together, so the background music for the gathering between Li Honghai and his classmates is called "Changjuju".