Check another trainees : http://www.youtube.com/watch?v=Yj6_u...
*I just found out one more trainee, he is Kang Hyun Soo, he has debuted in group LC9 as "AO", and in group BLK as "D.A" but unfortunatelly both of group had disbaned.
Please check him out too:
LC9 http://www.youtube.com/watch?v=HrV_B... and
BLK http://www.youtube.com/watch?v=cl5W_...


The trainees already debuted before they join Produce X 101.
Hopefully, they will be more successful through this program
Lets support them! thank you :)