"eventually it's KARAOKE TIME everywhere."

Singalongs have been around way longer than Karoake.

I used to sing along in kindergarten.

Singing in groups is one of the universal features of human musical cultures, and group singing has been often suggested as the primary form of the early human musical activity.[1] It has been suggested that human group singing was primarily promoting the cohesiveness within human groups,[2] and was possibly used to defend human groups from predators and competitors.

Jerryghr