The skill I use in singing, as you can see in NSYNC video, you can tell my mouth is doing something exaggerating stuffs. What is the reflection I have to singing against the whole band, one person against all? It was exhausting. I have to do it, or someone else is doing it? There is a sequence like there is a chasez looking to that Michael Jackson song in "We are the World" Pitch Perfect 123, still many people favorites video to watch while finding their talents to sing. A lot of people like to sing.