EXO LAY, China program "Idol Trainee" explained SM style "debut group" selection method.
* Choose 100 among 120 people.
* Of the 100 people, 60 people were chosen,
* From 60 people to 24 people
* Also from 24 to 12 people
* And we will drop one person every week.
※ "Idol Trainee" is an audition program called "Chinese version of PRODUCE 101".