To be successful some KPop idols even have to spend a very long time training period to deepen their vocal and dance skills before debut. They say perseverance is the key to success and literally these 6 idols are living proof. While perhaps not as long as some idols RM had the longest trainee period out of anyone in BTS at BigHit Entertainment.
However many of k-pop trainees dont go home and stay at their practicing rooms to do personal practices.
Red Velvets Seulgi 7 years Seulgi began training during her first year of middle school back in 2007. However many of k-pop trainees dont go home and stay at their practicing rooms to do personal practices. JR isnt just the member who trained the longest out of NUEST. General I just realized that SHINees Taemin and Twices Jihyo became trainees in the same year.