Su Jianxin's first concert in Beijing, after singing "I am a bird", what was the joke? Complete.

Before I turned to sing "I am a bird", the boss first expressed his feelings, saying that this song was for a friend of mine ... very low tone ... and then suddenly said ... Don't worry, he is still ... embarrassed ... After singing, he said that I sang this song to my friend because he would sing that I am a bird every time he dated his girlfriend ... Later, He broke up with his girlfriend ... but the most exaggerated thing was the boss ... He suddenly began to laugh arrogantly ............ ……VV was embarrassed and said "God" ... Then the boss smiled and said, "Who told that idiot to sing I am a bird on every date?" Keep laughing ... Boss ... you are invincible ... Sorry.