The earth group is just a self-deprecating title for Ellie to entertain herself. It used to be called tiantuan, but later someone ridiculed that EXO was also called tiantuan after posting it like this. This is a land mass, and then the dwarf joked that we are land mass powder, and EXO called the land mass gradual diffusion, which is a self-deprecating statement. EXO debuted at the same time in China and South Korea on April 8, 20 12, with a total of 12 people. It is divided into two teams, one focusing on the Korean market and the other focusing on the China market.