The reason is because Chen Tianjia’s amazing musical talent and stage charm fit the style and theme of the song.
The reason why Chen Tianjian can sing "Beijing Welcomes You" is because at the closing ceremony of the 2004 Athens Olympics, he sent an invitation to the world in English to "Welcome to Beijing". This invitation coincides with "Beijing Welcomes You" 》The theme is consistent with the theme.
In addition, Chen Tianjia sang "Jasmine" when she was 4 years old, showing her musical talent and talent. Therefore, he was selected as the singer of the first line of the song "Beijing Welcomes You" and became one of the important representative images of the Beijing Olympics.