Talk:Morning Musume Tanjou 20 Shuunen Kinen Concert Tour 2017 Aki ~We are MORNING MUSUME~/@comment-2A01:E34:EE7F:F240:2134:7254:DA81:ECB8-20171122214144/@comment-25441434-20171128213857

Sayu had months of singing/dancing lessons before she came back. Even though it's been a while since her musicial, she still occasionally preforms. And non-KSS that join an established group have at least 2 months of training before they are able to preform.

I don't really want to include guest appearances in the past, because that's different. A song like Suki na Senpai doesn't use as much energy as Shabondama.