The K-pop industry has been steadily growing in the past few decades while garnering an explosive surge in popularity in recent years. These K-pop artists have captivated listeners and fans worldwide with exceptional performances and impeccable visuals.

However, amidst this glitz and glamour, an issue has begun to surface that has elicited both fan concern and critical commentary - a perceived decline in the quality of live singing among certain idols. Often, the problem is most noticeable during encore stages of music programs, where these artists seemingly struggle to deliver strong vocal performances. This has sparked discussions about the evolving standards and expectations in the industry, with many seeking a balance between visual spectacle and musical prowess.

Recently, one YouTuber explained the reason why there has been a decline in live performance quality.

YouTuber K-pop Idol Trainer recently talked about the reason the quality of live performances of recent generation idols has decreased. He explained that the biggest factor is that the training period has gotten shorter, and idols have to go through killer schedules that make it nearly impossible for them to practice.

He shared in the recent live stream, "One of the fundamental reasons is that the training period for idols is getting shorter and shorter."  He added, "People say it would get better if they just increase their skills. Of course, it would be better. But I shared about the idol schedule before. You can't tell idols to practice until 3 AM after they get home. They don't even have time to sleep anymore. They sleep in the car when traveling, they sleep on planes."

He elaborated, "The more fundamental reason (idols are not good at singing live) is that the trainee period is shorter. Before it used to be a minimum of 7 years so they have no choice but to improve. Now, these trainees train for 3 years at most. There are some who even train for only 6 months and debut. Things have changed from a long time ago."