There used to be three, but now there are four. HYBE, JYP Entertainment, SM Entertainment, and YG Entertainment are among the companies involved. The competition for trainee positions at these K-pop entertainment companies will be fierce. Thousands apply, but just 1-2 are chosen to be trainees. HYPE is the most difficult company to break into because it focuses primarily on boy groups. They pay a lot of attention to and promote one group in particular. As was the situation with BTS.