How to make a video like singing by yourself first, and then the music starts playing?

Produced with cutouts.

For videos where you sing first and then the music starts playing, you can use editing to record the song you sing a cappella first and then export it. Then import the work into the cutout. Adjust it to the ratio you need, and then download the song or accompaniment you need that matches your lip sync from Music. In this way, there is a second music track just below the main track. The length, front and back position of the music track can be adjusted through various methods such as lip-syncing and tapping. Until you are finally satisfied. Finally export it, this is the work that needs to be sung first and then add music.