They are Chen Yinglei, Chen Keli, and Zhang Zhanbi

When the three girls were seven or eight years old, they were sent to the local Children's Palace Choir to learn vocal music. Because they have high artistic talents, the three girls soon emerged in the choir and became the backbone. When they were twelve or thirteen years old, the three were selected by the teachers of the Children's Palace to form a group. Because they sang a Spanish folk song "Green Mango" in a performance, they decided to use this name that fits their singing style as the name of the group.