It is an app where people can Lipsync to songs and have fun with friends. People used to make gestures in their videos.
By the way, a lot of annoying people hate
musical.ly because they can't stand the fact that people have fun using this app. These haters have just no life and so they waste their time judging people who use this app.
The parents of these annoying people probably gave them a very bad education where
disrespect seems to be a
good behavior.
Musical.ly is compared to cancer by these people. But cancer isn't something we can joking about. Never compare an app to cancer. Never ever.