An amazing performance by LiSA, she just puts her entire heart and soul into her singing. So much that she was overwhelmed by her feelings at the end.
This authenticness is why I like The First Take. But in general it's not found only there, but a quality that I love about a lot of Japanese performers: The impression that they're not just performing a song, but putting their entire being into it.
I couldn't agree more with you. It is very motivating and touching to see artists pouring their souls into their songs like that. At that point, it's definitely more than a song like you said.